Mod your Logitech MX620 on the cheap and get real improvements. Completely Reversible.
My favorite mouse died today- an older Microsoft Wireless Laser 6000. Office Depot's selection of mice presented me with a delimma. I really liked the MX620's hand comfort compared to Microsoft's latest 6000 series mouse; but, what I didn't quite like was the feel during movement. I may be delusional but the MS mouse seemed to be a tad heftier. So I was presented with a problem; do I choose?- great to hold (MX620,) or great to move (MS6000.) Well, I solved the problem to my liking. It costs exactly $0.75 and is completely reversible.
Step 1: Get Some Change.
This is the easy part, in fact all parts are ridiculously simple. Find three US quarters, and tape them together. I used two layers of Scotch tape. Be sure to cover all sides- you don't want a short.
Step 2: Shove Quarters Into Mouse.
Take your little quarter bundle and place it in the battery compartment. Press them firmly but gently towards the front of the mouse. The quarters will fit quite snugly and will not rattle around.
Replace the battery cover. Enjoy your mouse. The best part- if it sucks, you get your $0.75 back, the tape on the other hand, probably can't be reused. Up to you. You may try two quarters and just throw on a few extra layers of tape.