Eg. receipts from your shopping trips.
If you do,how do you keep them? You just dump them into a box, or
you staple them to a diary, according to date?
Do you think keeping receipts is a good way of keeping track of how
much you spent, and what you spent? And it's also a good way to
remember how much an item you bought cost. (Eg. your friends ask
you how much you bought your top for, if you forgot, at least you
can refer back to the receipt)
