Have just received this super book from "hello sandwich". Yesterday I was invited to for a birthday and then all the ideas was in handy. brown paper-bag and mt tape = a paper triangle for the gift was made.
I remember learning tables and thinking "why do we need to learn these tables by heart?". but today I must say that I find it very handy especially when I am traveling abroad. Then it's all about calculating whether it a good price or not.....quickly. (via, by Ich&Kar for Domestic)