More phrases I remembered.

Other words I may or may not have mentioned.

Bursting. When you really, really have to pee.
"Is this the queue to the loo? I'm absolutely bursting!"

Thanking you. When someone does something for you that's more of a small favor than a big favor. It's not a deep, heartful thank-you but you want to acknowledge what they did. A step up from 'cheers', which seems to register common courtesies like holding he door open, this is more like "Hey, do you mind folding that jumper for me? ... Thanking you!"

That's me! You're leaving somewhere you've been for awhile. The ladies at the Shop use it at the end of their shift, as they're getting on their coats. A friend once said it to me to let me know she was leaving the hairdressers and that she was coming home. "Well, that's me! See you tomorrow!"

You can also say that to someone else, more like "It's half-four, so that'll be you, eh?" ("It's four-thirty, so time for you to go, eh?")