"Hot enough for ya?" - I'm going to start using this every 110-degree day for the next several months, annoying everyone around me, which will bring me great joy.
"One in the hand is worth two in the bush." - There are so many uses for this one, all of them dirty. It's like a Swiss Army knife of filth.
"This is my jam." - Can be applied not only to music, but screechingly awful environmental sounds, or literally to raspberry preserves.
These three are all I can think of for now but I will add more as they come to me.