Goal and options: Where can I get key copies made
output answer: You can make key copies at a locksmith

Goal and options: To tell if a hard boiled egg is fully cooked.
output answer: To tell if a hard boiled egg is fully cooked, just spin it. If the egg wobbles, then it's raw. It will easily spin when fully cooked.

Goal and options: Remove labels and glue from jars.
output answer:
There are several different remedies you can try. Peanut butter works sometimes. Rub it on, let it sit and then roll your finger back and forth. If still some residue remains, try acetone nail polish remover. Afterwards, wash off all residues with warm soapy water and rinse again.