Everyone has their own little "tricks" for saving money.
A tried-and-tested one that I myself use is emptying out your spare change at the end of the day (your purse or wallet will be much the lighter for it), and putting it in a jar.
It's surprising how much money money people can save this way.
You can use what you saved from "spare change" money to:
(1) help a charity
(2) buy a treat for a friend
(3) buy a treat for yourself
(4) add to your savings account