being a servant v. everyone doing their own dishes

ok... this is my dilemma.
at work, i often have time with which i do what i please. meaning, i do have time to do productive things like washing other peoples dishes or sweeping the floor. however, i don't wanna wash other peoples dishes everyday. part of me thinks, "it's not a big deal, erin, just do their dishes." the other part of me thinks that doing other peoples dishes on a regular basis is really, really annoying. because seriously, washing a dish or two is no big deal, so why can't they do their own damn dishes? hum. i see that i have a little bit of anger on this issue.
if the sink is full of dirty dishes, one cannot use it. not to mention it's sick and nasty. i think i'll need to think on this one a little more.

side note and for the record: i do wash the dishes most of the time. and usually i'm not that upset about doing it either. but when i really think about it, frustration overcomes me. and then i turn into selfish erin, refusing to wash the dishes, thinking "i'm better than this." the funniest part about it is, i'm sure it doesn't bother anyone as much as me to have the sink full of dirty dishes, therefore when i choose not to wash them i'm only frustrating... me.