Keep groups of similar tabs together.
A Chrome extension that automatically rearranges tabs based on a set of regular expressions provided by the user. This mimics, in a way, the "pin" behavior built into Chrome since tabs that match a given expression are moved as far to the left as possible and grouped together.
The extension attempts, within reason, to maintain its arrangements.
An example usage, and the reason I built it, would be to keep the tabs for a bunch of pull requests that you are involved in grouped together and easy to find at a glance.