What Item have you purchased for less than $100, that has made a large difference in your life?
For me, it was a pair of merrell shoes on sale. They have lasted 3+ years, have great grip in the snow and ice, and so comfortable, my feet don't hurt after wearing all day.
Never cheap out on anything that comes between you and the ground; shoes, tires, a bed.
What have been some of your good purchases under $100?
A sleep mask. I sleep much better now that all the light is blocked out. Also, if I want to, I can sleep in in the mornings when it's bright outside and the light won't disturb me.
I bought one with Bluetooth headphones built in. I have tinnitus and going to sleep was torture. I'd lay in the quiet room and be unable to sleep thanks to the loud ringing in my right ear. During the day, my hearing aid helps, but I take it out at night. With the Bluetooth sleep mask, I can put on white noise, drown out the ringing, and fall asleep.
As a bonus, I made a specific white noise mix for sleep and I seem to have trained my brain to have a Pavlov-type response. When that white noise goes on, my brain says "time to go to sleep" and I'm able to quickly fall asleep instead of having my brain run a mile a minute in the dark. (At least, on most nights. The Pavlov response isn't strong enough to overcome me being stressed about something if I go to bed.)
The sleep mask with Bluetooth cost me about $30 and it was worth every penny!