If you spend much time at all in SQL Server Management Studio (SSMS), you’ve no doubt had trouble figuring out which query tab is the one you need.
Many DBAs and SQL Devs find themselves (despite best intentions and New Years Resolutions) with dozens of tabs open, and many of them unsaved.
Kevin shows the built-in solution. My solution is Tabs Studio. I paid $50 for it and have zero qualms with the purchase.