The Problem
You’ve closed some tabs in your browser, but you want them back. How can you do this quickly?
The Solution
The following works for Chrome, Safari, and Firefox.
Windows: Ctrl+Shift+T
Mac: Command+Shift+T
The Result
If you key that shortcut once, it’ll bring up the last tab you closed. Hit it again, and it’ll bring up the one before that. And so on.