I'm on the opposite side; I prefer to give myself a weekly "allowance" i am the type who, if i don't see it, aka use my debit card, i tend to spend more. i budget $150 a week for groceries, gas, and any other misc. expenses, and take that out of the ATM every friday. which is in my building at work, so very safe.
I then use that over the weekend when running various errands, so by sunday, I usualy have less than half left. the following week, whatever i have left, goes into a tin, and I keep that in case I have a week where I have an unexpected expense, or for vacation or something fun.