There are few smart ways to conceal your digital porn collection. Of course, as regards old-school DVDs or CD-Roms, you have to stash these physical items around the house, but with photos and video files, there are many more options.
First of all, identify the possible threat. Who could possibly see it, and what would be the consequences? Your partner may not care about porn as much as you think. However, even if you live alone, there are possible downsides to mindlessly throwing the files in the “Documents” folder: