Making folders in Clip

Hi.  I just got a new clip.  I am using a Mac and I don’t use playlists at all–but I would like to use folders.  At first it seems you can’t with a clip, but then I realized the clip has a whole bunch of folders–audiobooks, podcasts, audible–already set up.  I put some mp3 files in them and they work.  Anyone know if I am using a nifty way to grab a few folders to organize my stuff–or am I setting myself up for crash disaster?  Thanks.