We now impose fines for lateness as it was really pissing me off too.
The amount of times someone would say, "Be at the venue at 5". I'm there for 5, but the rest show up between 5 and half past.
I'd have no problem arriving at 5.30, just let me know so i could've stayed in the house!
So it's £1 for every minute late.
Sounds a bit harsh, but we started it as our bands New Year resolution and no-one has been late since.