input question: How to prevent a mirror from getting smudges?

output answer: Use a makeup swab and some rubbing alcohol on the spot whenever you see a smudge appear

input question: how do you skin onions?

output answer: cut the top and bottom stems off and then peel off the top skin.

input question: What is the quickest way to melt a block of wax?

output answer:
Use a mandolin or a sharp knife to slice shavings from wax block. The smaller shavings will melt much quicker than a block.