Thought I'd add my 2 cents. My pet hate is
"On climb too" when its "Climbing too"
gets me even more when this is said in a dep report
"On climb, not above xxxx" -> Your already "not above" any altitude even if your still on the ground. No need to climb to get "not above" an altitude.
Also, heard this one a few times at millitary AD's on VFR flights,
"ABC, Cleared for take off, right turn 290, visual"
I thought all VFR flights were visual ?!?! In one instance ATC required me to read back "visual".
Having said all this I know I make many mistakes myself.