Today is the 40th birthday of the computer mouse.
With mice in mind, my word of advice is that if you don’t have a mouse that feels comfortable, you should help the economy and splurge on one.
Why you ask? It’s just a dumb mouse, aren’t they all the same?
They aren’t. Some track better, have more buttons, are wireless or have other funky features… but that’s not the important part.
Side note: If you look on the bottom of your mouse and see a little ball recessed in the mouse’s body, go out and get an optical mouse. I’m not kidding, you won’t miss the little ball. I promise.
What matters is that your mouse feels comfortable to use. If you are anything like me you sit in front of a computer for obscene spans of time. Why be uncomfortable? If your mouse doesn’t feel right, you can injure your wrist, or cause neck and back pain. Get a mouse that works for you, and maybe a wrist wrest to go with it.
Practice safe computing and avoiding injury.
The Geek Whisperer 
yea wireless optical mice from logitech are the best.
Logitech makes good stuff now, but Microsoft makes some damn good mice too (by the way: Microsoft mice work on Macs too).
Logitech left me with a bitter taste in my mouth after years of driver problems. I know they haven’t had those problems for years, and I probably should let it go… but I still don’t like buying Logitech products.