Easiest Business Idea Ever?

I recently came across a super-easy business that I thought I would mention here incase it gives any fellow Warriors some ideas.

The business was essentially a lady whose target market is people who are unhappy/unfulfilled with their current career.

For $100 she will send you a questionnaire to fill in, and when she receives it back she will then provide you with some suggestions for things you might prefer doing instead!

What's that - about an hours work at most? Probably less?

Now, of course I don't know how much this business is making, but obviously enough to pay for a stand at a careers fair recently.

So here's the question - what sort of "survey" could you offer to a hungry market for a price?

Possibilities:

Target market - owners of badly behaved dogs. Business - specific techniques for training your dog based on breed, size, behavioural problems etc.

Target market - potential boat owners. Business - based on finances and goals, provide advice on the ideal boat for them, together with details of local boat yards and information on common faults with those models so they know what to look out for when buying. Maybe even a JV with a local boatyard where you get a commission on any boat sold.

Target market - insomniacs. Business - provide specific tips and advice on getting a proper nights sleep based on their feedback.

And so on.

I think this works so well because the answers are "tailor-made" for someone, giving it a higher perceived value, than just a simple guide or report on the same topic.

Any other ideas come to mind for this one?

All the best,
Richard