Getting swarf (grease & dirt) out of clothes.
When it's fresh; before you launder, rub ordinary white floor wax into the spot and work it
in well. It desolves the grease, and washes out. I'm not sure about polyester, or poly blends, but it works wonders
on cotton.
Removing adhesive from floor tiles.
When putting down new tiles with adhesive, clean up any messy spots when the job is done, with
ordinary dish liquid. Sunlight works well: just work in enough to moisten the area, and it disintigrates and just wipes
off with a cloth.
Unplugging slow running sinks.
Before you buy Drano or Liquid Plummer, try this less offensive and effective
trick.
Put about a quarter cup of baking sode into the drain hole, and pour in about half cup of white
vinegar. Let it bubble, then pour in a bit more vinegar. Let it sit until it stops bubbling, then turn on the
tap.
If it's still a bit slow, do the same process; it may take 1-3 applications, but if it's only
grease it should work.
Deodorizing a fowl smelling sink.
Pour some bleach into the hole and let it sit until you need to run the tap.