i recently bought a Logitech M705 mouse from Sam's Club and I am in love with it. So much so that I bought four more for my other computers.
I am using Logitech K750 keyboards for my Apple computers, and the M705 mouse shares the same USB dongle. One dongle for two devices.
I have used bluetooth for keyboards and mice before, but I much prefer USB.
If you are in the market for a new mouse, then I highly recommend the Logitech M705. It works great on both Windows and Mac OSX.
I spilled Coke on one of my K750 keyboards and tried disassembling it so I can clean it. DON'T DO THAT! The K750 is NOT dissamble-able. You will DESTROY it trying.
On the positive side, it appears that if you run the keyboard under a stream of warm water in an attempt to de-sticky them, then it may work. all of the electronics are underneath the "Logitech" logo at the top of the keyboard. as long as you just use clean water and leave it in a warm dry place for a few days, then you may be able to clean a K750 that you have spilled on. If I spill on another one, then I will run it under warm water, and place it on a towel in the oven, set at the lowest setting, until it is warm in there. Then turn off the oven and allow it to sit there and dry. My oven's lowest setting is 170 degrees, which is too hot in my opinion. I would set it to low (170) and then wait until it reached about 130 (using my laser thermometer) then turn it off and close the door. After about an hour, I'd do it again. Be sure not to forget and allow the oven to reach 170 or I think it may warp your keyboard.
That's my sugestion and I take no responsibility for it. In may case, the sticky-keyed keyboard was ruined, so I am not too broken up over having destroyed it. If you also have a sticky-keyed K750, then you may as well consider it completely ruined. If my tips help you to salvage it, rather than throwing it away, then I am happy... but you'll probably have to throw it away.