I just performed my first home repair: I changed out the aerator on the kitchen sink. The previous owner had some sort of water filtration system hooked up at some point, which was long since defunct. The aerator and attachment were still there, however, so I wanted to change it out for something a tad less decrepit looking. So, off to Homo Depot this weekend to get that and a few other things for the house.
Well, just found my plyers this evening, so I ripped off the old aerator and I was appalled at the amount of crud built up inside the old one. No wonder I was getting crap for water pressure in the kitchen, nothing could get out amongst all the gunk that was built up in the aerator! Yuck, yuck, yuck. Had to go run off and grab my old toothbrush (that I use for scrubbing small spaces) and clean the thing off thoroughly to get all the crud off the thing before I could put the new one on. Thankfully it all came off quickly, and the new aerator screwed on pretty easily.
Not bad for a first repair, but yuck on all the crud that was discovered.