If your washing machine starts to smell a little, well, musty, run some Oxyclean through with a few loads. It'll get rid of the smell.
If your vacuum cleaner stops picking up dirt, it's probably got a broken belt. A new belt, which takes about one minute to install, costs less than five bucks; a new vacuum cleaner costs ... well, you know what you paid for your last one.
If you're buying a new lawn mower, go ahead and splurge on an electric start. It'll be the best extra fifty bucks you've ever spent. F*ck that pull-cord sh*t.
Those sound-effects clocks, the ones with a bird singing or a train whistle blowing every hour? They go through batteries like poop through a goose.
If you ring someone's doorbell and don't hear the doorbell ring inside the house, it's probably broken. Knock instead.
So! That's what I got. How about you? Any helpful household tips?