I recently discovered a small utility that solves a slew of multi-PC problems smartly and simply. For starters, Mouse with Borders lets you use a single mouse and keyboard to control up to four PCs.

Want to control more than one computer simultaneously with the same keyboard and mouse? These software and hardware options can help.

Followed by the release of Start10 on Steam back in May, Stardock has also announced Multiplicity for the gaming platform. The software allows you to control two PCs with one mouse and keyboard.

For $40, you can copy and paste between PCs, drag and drop files and folders among computers, send the same mouse and keyboard input to all computers at the same time, and more. Is it worth it?