Fix your mouse's unwanted double clicking - a tutorial that saved me from replacing my beloved Genius Deathtaker for another couple years to come. Didn't expect it to work, was pleasantly surprised. :
Logitech G600 Button Repair - No Soldering - YouTube
Doug tries to fix a double-clicking Logitech Mouse - YouTube
The Logitech Mouse Double Click Problem and How To Fix It! - The Red Ferret JournalThe Red Ferret Journal
Logitech G600 MMO Wired Optical Gaming Mouse Black 910-002864 - Best Buy
Amazon.com: Logitech G600 MMO Gaming Mouse, RGB Backlit Logitech G440 Hard Gaming Mouse Pad, Optimized for Gaming Sensors, Low Surface Friction, Non-Slip Mouse Mat, Mac and PC Gaming Accessories : Video Games