Call me sad, if you will, but I love washing up. Too much time in front of computers, and a lot of time talking to people mean that standing quietly in front of a sink playing with soapy water is wonderfully relaxing. It's not too difficult and it gets done, which brings plenty of 'job satisfaction'. Other, more important jobs might tax the grey cells or remain unfinished for days and weeks, but the washing up gets done - to a high standard, I might add. Rinsing in very hot water is a must (and my Dad also insists on pre-washing...)
It's also the kind of job that is particularly attractive when more urgent things need doing. For some hilarious and sage comment on procrastination, see this Stanford philosopher. (Thanks to David Field's blog for this one!)