I like the idea of Frugal challenges - that fits well for me and our lifestyle
I love the idea of coming up with a new challenge. The "no shopping" challenge is a great idea. There is a website which promotes this idea, and usually allows one or two exceptions. So for us it would be milk. And for families with young children, the challenge does not include nappies, formula etc - it is for food only.
And so far, from what I can tell, the people in this forum are mighty real. and cool... and cheeky too TMB
I picked up a book in the bookstore along these lines (think it was $21 per week), and I nearly bought the book because the IDEA really appeals to me. Unfortunately, realistically speaking even the milk, butter, cream, eggs, cheese, and nuts (very basic items) our family of 5 consumes a week means that we could not even attempt to get near this. Throw into the equasion all the other little lovelies like frozen raspberries, blue berries, bananas to name just a couple, and we are out of the competition before we are in it. I reckon every time I walk into the supermarket on average I walk out conservatively about $70 (at least) poorer. We shop 7 days a week. That is very embarrassing to admit...but we are all very healthy...
We all shop differently and have different lifestyles, needs etc. I think part of the idea is to get creative. Eg halfway through making muffins, I don't have any chocolate chips. So I see what else I have instead eg sultanas, berries, apple, tinned pear, instead of going to the shops for chocolate. So I think you can run with the IDEA with a few mods for your needs. Eg buying nothing except milk, butter, fruit & vegies etc. What works for one, won't work for everyone. And maybe the bigger the family, the bigger the allowance - not necessarily $21.