Never buy a rechargeable mouse, you'll forget to charge it most of the time...

have Logitech mouse. whenever it runs out of juice I plug in USB cable and use it like a corded mouse

I have a rechargeable AAA battery in my mouse and 2 in my shaver.

whenever the one in mouse runs out, I put it for charging and borrow one from the shaver .

for me, using a corded mouse with a laptop is kinda irritating.
also, wireless mouse lasts longer.

tom and jerry

The apple magic mouse battery seems to last for ages, which is great, but means I forget to charge it. Apple decided to put the charging port underneath so you can't use and charge at the same time.