Did you know that if you hold down the SHIFT key when selecting Thumbnails View or opening a folder, the Filenames for the items will not be displayed? I didn't, but just found out because for some reason I had no filenames in any of my Thumbnails view and could not figure out why. This seems like an obscure feature since I could find no mention of it anywhere, and it took me 15 min to search for the answer on the web.

Here is an example. While this is usefull for Picture Views, it's usless for looking at folders/files.

[via MalekTips]