Coffee Stain on White Counter Top?
Have you tried rubbing the stains with baking soda and a little water?
Unclogging a Drain?
Put one cup of baking soda and one cup of salt in drain. Pour in boiling water.
Fruit Flies?
This sounds silly, but it really worked for us. Use your vacuum cleaner to suck up the flies on surfaces and also in the air.
Replacement Bubble for an Eight Cup Yosemite Percolator?
Here is a website that sells glass perc tops (there are probably others as well):: http://www.repairshack.com/small-applicances-appliance-parts-farberware-c-83_100_132.html