For those in the US: Learn how to file your own taxes. It's really simple for the large majority of people, and usually just consists of copying numbers into boxes off a sheet your employer made for you. After you've done it once, subsequent times you'll probably have it done yourself in less than half an hour.
You can do it for free on a ton of sites unless you make significant income, freetaxusa is typically the most highly recommended one.
One of my favorite search ads that appeared in the mid 2000s happened when I was bored. I searched "grandpa" without any context just to see what would come up, because I really was that bored. One of the ads that appeared was one of those where they just shove your search in the title verbatim so someone not paying attention might think it was what they wanted.
It said something like "Looking for grandpa? Find great deals here!" I don't remember exactly what the second part said, but the "Looking for grandpa?" part made me bust out laughing. I then started searching other random stuff to try and get something equally stupid, but it didn't capture me quite the same way. Either way, my boredom was alleviated.