I've been fortunate enough to have either a covered gazebo or a covered deck and consider that ideal for working grills.
-- My grills are old and do not shut down the charcoal very well. They stay warm, or even hot, for quite a while. Don't want to melt a cover. I'm assuming those of you without gazebos or covered decks or carports or garage space wait until the next day before placing covers back on?
-- Anything with a wood handle that you care about, or paid good money for, needs to be covered in my opinion. It will get destroyed by rain, if not sun.