My JIRA fanatic manager: log whatever you do during the day, even the smallest things are important. and you have all the material needed for next day's standup meet.

me, on a particular tuesday:
had lunch
peed thrice
bitched about an unreasonable bug raised by the testing team
listened to Rihanna's song Diamonds
had four mugs of coffee
, among various other things.

next day.
manager: so, ssup?
me: eh, didn't do much yesterday. was one of those down days I guess.

Guess who was asked to write "didn't do much yesterday" on all the JIRA tickets assigned to him?