At the gym, I was originally dismayed to see you have to pay 50p every time you use a locker. (you know those lockers where you put a coin in and the key pops out?) So, I have been hoarding 50p coins and dutifully using one to get the key every time. Then I discovered that one of the lockers returned my coin every time! I was very excited and kept trying to use the same locker, thinking I was a real smartass. Yesterday I was informed that ALL the lockers return your coin. It's just a deposit. I've been leaving 50p in the slot without noticing.