Unwanted Clicks When Using Touchpad? Unwanted Double Clicks When Using Mouse?

Lately, I've been having trouble with unwanted accidental clicks when I'm using the touchpad. Yes, I've disabled tapping, I bought a Mac because I hadn't been able to disable tapping on my previous Linux Machine.

I've also been having trouble with single clicks registering as double clicks on two buttons of my mouse. I bought a new mouse, but it affects the new mouse as well as the old one.