The direct answer

Validate a startup idea by finding a repeated problem, building the smallest version someone can buy, and asking target customers for a real purchase. Payment is stronger evidence than stated interest.

Key points covered

  • Look for a repeated problem in a specific customer group.
  • Start with low overhead and a very small batch.
  • Use purchases and repeat orders as the strongest validation signal.

Experience behind the lesson

I’m Charles McNall, an engineer, inventor, and exited founder with 18+ years in medical devices, automation, robotics, manufacturing, and physical-product startups. I co-founded Chuck Rack, led product development and commercialization, reached $250,000 in first-year sales, and completed a founder exit in 2024.

Full video transcript

Transcript: How Do You Validate a Startup Idea Before Spending Heavily?

This is the complete timestamped transcript generated from the video captions. It has been formatted for readability but not rewritten. Automated captions can contain transcription errors; use the embedded video as the authoritative source.

[0:00] hi there and welcome to episode one of

[0:03] startup Chuck which is really all about

[0:06] uh idea Creation in starting a company

[0:09] so if you want to start a company there

[0:11] needs to be a market need which means

[0:13] there needs to be uh some unmet need

[0:18] that people want to spend money on right

[0:22] um so that's the first thing how do you

[0:25] determine a market need um it could be

[0:28] something that you need for example

[0:30] personally so if we go back into my

[0:33] project archives here project archives

[0:36] then we can see one of the the first

[0:39] company that I ever

[0:41] created uh Uncle Charlie's shoe

[0:44] deodorizer balls so I was a rock

[0:47] climber and uh the climbing shoes I had

[0:49] didn't smell real great so um at the

[0:52] time this was

[0:56] 2004 um I was really trying to think

[1:00] about what what can I do in order to um

[1:05] you know dry my shoes out and powder is

[1:08] kind of stuck and it was never really

[1:10] good so um started thinking about it and

[1:13] was like okay so there's nothing out

[1:16] there boom right there Market need I

[1:18] need something the other people The

[1:20] Climbing Gym needs something so that's

[1:23] kind of idea creation if you don't have

[1:25] an idea you can start asking people you

[1:30] can find a demographic of people and you

[1:32] can go and um find a group that all have

[1:37] something in common uh and then so let's

[1:40] say it was uh golfers right you go to 50

[1:43] golfers and you say what do you wish you

[1:47] had um that you don't have right now

[1:50] most of them would probably say oh I

[1:53] want to take one stroke off my game

[1:55] right but it could be something as

[1:56] simple as oh I wish I had a glove that

[1:59] didn't itch my pinky right and so you

[2:03] might get 50 different answers but if

[2:05] you get uh maybe 10 of the same answers

[2:10] then now you've got an idea that might

[2:13] be worth going to market for right

[2:16] so from there you have a whole lot more

[2:20] steps but since we're going to stick

[2:22] with the easiest way to make money on

[2:25] anything you need to think about okay

[2:29] lemonade stand what is the easiest way

[2:32] to make money when you were a kid it was

[2:34] a lemonade stand right it had very

[2:36] little overhead you didn't get a

[2:39] business license you went directly to

[2:42] the customer and sold it straight to

[2:44] their face they gave you cash and then

[2:48] basically your costs coming in were more

[2:51] than your costs going out and on a basic

[2:54] level if you want to earn money in

[2:56] business just go do that start with the

[3:00] simplest possible way ground roots to

[3:03] make money and just sell something sell

[3:05] sell sell and it doesn't have to be

[3:07] anything special this was one of my best

[3:10] successes mainly due to the fact that it

[3:13] cost almost nothing to make I went

[3:16] straight into the shop and to the

[3:18] climbing shop and said hey I have these

[3:21] Sho odorizers uh this is a problem that

[3:24] people are having would you like to buy

[3:27] these um we negotiated a price they

[3:31] negotiated how many they wanted let's

[3:33] say I think I gave them like the first

[3:34] batch was maybe 20 um and then literally

[3:39] just super simple packaging you

[3:43] know paper printed out folded over hand

[3:47] punched Staples and then I think I had

[3:51] coffee beans and um what was it

[3:55] activated charcoal which is like really

[3:57] I think that's made from uh the husks of

[4:00] coconut that they you know Char up um in

[4:04] muslin little balls that I had and so I

[4:07] just made a little assembly line in my

[4:09] kitchen which again if you want to be

[4:13] profitable again uh with the small

[4:15] little thing if you can make it in your

[4:17] kitchen that's the way to do it yes

[4:19] we'll talk more later on about scaling

[4:22] and you know making things uh at

[4:25] factories and whatnot but start small

[4:28] start cheap if you can do something in

[4:30] your kitchen whether it's legal or not

[4:32] you know it depends if it's food or

[4:34] whatever it is

[4:36] um that's the cheapest you're ever going

[4:38] to get right and then so you know I took

[4:41] it to them I gave them an invoice they

[4:44] gave me a check and within the second

[4:47] order I had paid off all of the

[4:50] investment that I had in buying these

[4:52] bags in bulk paper ink I had to buy a

[4:56] little heat sealer for this baggie

[4:59] although

[5:00] um actually didn't even need it probably

[5:03] I probably could have got these little

[5:05] baggies that already came you know pre

[5:07] zip locked this is all like early Amazon

[5:09] also so it's much easier to buy supplies

[5:11] nowadays than it used to be um and then

[5:14] again you want to start small right you

[5:18] don't want to get in over your head and

[5:21] make 10,000 of these and then you're

[5:23] stuck with them when you can't sell all

[5:25] your inventory you want to test your

[5:28] Market early with a small amount of

[5:30] these and or whatever you're making and

[5:34] basically scale from there which again

[5:37] we'll talked about scaling and all these

[5:39] things later on but this is just an

[5:41] example of if you want to make money and

[5:45] you want to start learning immediately

[5:46] about business and seeing if you have

[5:48] what it takes to succeed which really

[5:51] it's all about sales if you can sell a

[5:53] product to somebody it validates the

[5:56] market need and then you can expand on

[5:59] that if you can't sell any of these to a

[6:01] shop right if I couldn't sell any of

[6:03] these to a shop if I couldn't sell those

[6:07] special you know anti-itch pinky gloves

[6:10] to those 10

[6:12] golfers then it's not probably going to

[6:16] be a great product right it might be how

[6:19] expensive it took for me to make it

[6:20] isn't going to work for the customer

[6:23] right I think I settled on like $6 or

[6:25] something for these um and we'll get

[6:27] into how much something should cost

[6:29] right rough ballpark usually MSRP is 4X

[6:33] whatever your manufacturing cost is um

[6:36] but in general if you can't get the

[6:39] customers that you asked and they said

[6:42] that they wanted that product if you

[6:43] can't get them to buy it if you can't

[6:45] get any of them to buy it then either

[6:49] the pricing is wrong or there isn't

[6:51] actually a market demand a lot of times

[6:53] people say they want something and in

[6:55] fact they reality they don't um so but

[6:59] by testing that market need early with a

[7:01] simple product one that is doesn't take

[7:04] years of

[7:05] development um then you know you can get

[7:09] a much better idea of whether or not the

[7:11] product is good and it can scale and

[7:13] we'll talk more another time about

[7:17] theoretical products right so something

[7:19] that could have a lot more financial

[7:21] investment in it in order to produce

[7:22] that item but this is the first episode

[7:25] we're talking about the simple possible

[7:28] way to make money on a product um

[7:33] literally from you know idea to being

[7:37] profitable within a couple of weeks if

[7:40] you do that you know really you're going

[7:42] to be successful in almost any product

[7:45] that you come up with as long as you do

[7:47] those basic

[7:50] steps