[Sundae]

I always wanted to open up a walkthrough Toast Shop in a narrow unit next to a busy train station. It could be a Toast Cart easily. People love toast for breakfast - from harried businessmen to figure-conscious shopgirls. It's nutritional, fills a gap, cheap and you can eat it on the go, fast, smells great, simple.

That's all I would sell - toast. And maybe tea/ coffee (but British style, where your choices are black or white, sugar or none).

Toast. Two slice minimum.
- White, brown or malted?
- Butter or spread?
- Any topping?
- Take a number and move down to the till please.

Kerching!
50p without topping, £1 with.
50p for tea of coffee. Using volume of sales to drive profits.
Move along please, I have millions to make.

I think it would be too simple (in terms of choice) for Americans though.