Magic Mouse "lost connection" randomly.
My Apple mouse works fine with Yosemite (and the latest version) but randomly, every 1 to 3 days I get a message saying "lost connection" (whether using the mouse or not). I've tried "Recant devices" in "Bluetooth Explorer", and the sudu thing in Terminal, but rebooting seems to be the only way to get it working again - for a while. Very boring...