Softening Hard Sugar?
Sometimes you can soften it up if you put it in the microwave for a few seconds. I would try it in 10 second intervals to see if it works. I know it works on brown sugar.
Controlling Insects on Houseplants?
Make a mixture of water and cayenne pepper or jalapeno juice (about 2/3 water to 1/3 pepper or pepper juice) mist on plants. this also works pretty well on garden plants.
Unclogging a Toilet?
The best way is to purchase a plumbing snake from a home improvement store and use it to run down your plumbing line from the toilet to the sewer. It should unblock any obstruction you have in your line. With kids it is always a good idea to have one handy...