Try to debug it
Go for a coffee break
Ask in SoPW for help
Demand in SoPW that someone fix it! Now!!!
Repeatedly bash my head against the wall
Repeatedly bash someone else's head against the wall
Ignore the problem in the hope nobody will notice
Declare that it's a feature, not a bug
Write an RFC to make my "solution" an internet standard
Run it again "just in case"
Wait until the next morning, hoping "reverse code rot" fixes it
Change all characters to semi-colons
Results (899 votes), past polls
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
Results (172 votes),