I was talking with a couple of GF'ers the other day and they said they keep an Excel spreadsheet so they can see how much they're spending and why.
My boyfriend also does this. He likes to see what he is spending his money on. I guess it helps you look where you can cut back.
I've never done this and I used to take the piss out of him for it lol. In a nice way of course!
But thinking about it now I realise it's a really sensible idea and I'd probably benefit a lot from keeping some sort of record of where my money is going.
I may start next month.