I have been using a button and/or hotkey to switch between Details and Thumbnails mode for years now. But a few weeks ago I tried setting the double-click on file display background function to do this, and it has been a wonderful change. If you frequently toggle between two different file display modes, try it out, you'll love it.
The code I use is Set VIEW=Thumbnails,Details
The only issue is that it sometimes it isn't possible to find a spot to double-click if you're set to Details and your lister is completely full of rows/columns. But in my experience, this doesn't happen very frequently, and when it does, I still have my hotkey as a backup.