I swear Logitech hates me

My Logitech mouse has been playing up for a while, occasionally when I click the left mouse button it double clicks randomly. Not that fun when I'm closing a window and it closes the one after it, or when I'm trying to play a game. I did some forum-stalking and apparently it's a problem caused when the clicky things inside the mouse wear out and send the clicky signal twice by mistake. Only problem is that my mouse isn't that old. Like, a year and a half. At the most.
My Logitech keyboard's been playing up as well. The right shift key's not working. At all. I had to use the left one, and that's mighty annoying when I'm typing fast. I've switched back to the keyboard the computer came with, but I'd like my Logitech one to be fixed. It had volume controls and buttons and everything. :'(

And Holy crap on a cracker, that last post was looooong. Sorry.