A thousand annoying little tips

Okay, maybe not a thousand, and perhaps not annoying, but a lot of tips, nevertheless.
Ones that I have tried and found to work for me, to maintain a better home.

I'm starting with a few, and will keep updating the same post, rather than making countless new posts with single tips.

1.
Use up the cut lemons you get with takeout Indian food. Freeze them and use when They r great for:
Squeezing lemon juice in the dishwasher along with your dishwashing liquid (the ones made for dishwashers)
Collect a cup ful of the rinds and put them in your sink, then run the garbage disposal. Would de-gunk the garbage disposal.
Store the cut onions too, and use within one day where over you need onions.
The little plastic boxes that contain takeout food can be reused, and used when you need to share sweets and snacks with neighbors, without having to remember if Mrs Jones has returned your boxes.

2.
Rinse your sponges and scrubs free of suds, and when they are still moist, nuke them in the microwave for 2 mins every 2 days to disinfect. (caution: dry sponges may cause fire, and also wait for a few mins before touching the hot sponges)

3.
Spray bathroom tiles and shower curtain, especially where the curtain touches the bathtub, with a salt solution, using a mister bottle, once a week, to keep mold and mildew from forming.

4.
Use either baking soda or isopropyl alcohol (rubbing alcohol) as a deodorant.
I got the tip about rubbing alcohol here: http://www.debtfreeadventure.com/2009/11/natural-homemade-deodorant/

5.
House flies.
To get rid of them, pour rubbing alcohol into a mister bottle (that you get for a dollar) and spray on them. They get disoriented and land down, so you can spray again and again till they don't move, then you could trash them.