I fell across a thread on another site, and it made me think.
I used to buy magazines, but no longer do - to be fair I could spend £10 a week on them, now I only buy the Sainsbury one.
The kids would regularly get lunch money (with 4 it was around £10 a day!) - now I make them all sandwiches.
I rarely buy drinks and sweeties when shopping, and I only go into town when I have a list of things to do - I never 'pop' anywhere any more - today I am doing shopping/going to the tip/doing a school run. Tomorrow I probably won't use the car.
What have you stopped doing to save money but hadn't really thought about?