In an effort to keep better tabs on my weekly spending budget, I came up with this plan:
I have a Blackberry that I always have with me, so I made a note for this week, from Thursday to Wednesday, 8/21 to 8/27, since I usually go grocery shopping on Thursday nights. Then I wrote what I spent, for example today's entry said:
Stop and shop: 25
Lunch with a friend: 12
Total: 27- no, 37. Obvious math!
So now I know how much I have left for the week. I think this should work!