I do.
I carry my work clothes, some change of clothes for the ride home, my lunch, a towel for a shower, toiletries, etc., to work. When I go home I pack all the stuff back in the panniers. The extra volume of clothing from a cool morning is usually offset by the fact that my lunch is gone. I need to weigh my fully loaded bike sometime; I bet I'm carrying an extra 25 lb. or more in the panniers on my 34 mile round trip.
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I stop for people / whose right of way I honor / but not for no one.
Originally Posted by
bragi 
"However, it's never a good idea to overgeneralize."