First off, this is supposed to be a cheeky fucker thread. This is not a thread laughing at people making attempts to cut back to save money. Just want to make that clear!
This thread is inspired by my friend I went swimming with yesterday. Our local pool does wrist bands that indicate what time you entered, so yellow for 2-4, blue for 4-6, etc...
My friend was very adamant we HAD to go swimming at the 4-6 slot. I didn't question it but found her insistence odd.
It turns out she had blue bands from her last swimming session! She had just kept them and not handed them in 
When we entered the pool she shouted "oh don't worry I already have the bands" to the pool employees. So not an outright lie but they assumed she paid!
It's a busy pool as well, so I doubt they notice she hasn't paid
I asked her why she did it and she said she'd paid once and if she could get in for free by keeping the bands, why pay?
any other stories like this?
My father also once said he went to a barbecue where the owner requested everyone bring a 'portion of coal' but I still think that was a joke (or hope)