I use a Logitech G900[1] that I bought when I was gaming a lot. Now I have 4-8 extra buttons, and I'm wondering if folks have found clever uses for them.

Software development-related shortcuts are particularly welcome, but I'm interested in anything you've got up your sleeve.

[1]: https://www.logitechg.com/en-us/products/gaming-mice/g900-chaos-spectrum-mouse.html