This one gets a lot of users, but understanding how your free 20-Gig storage works will help you not get in a bind. First, some really good news: If you use Lightroom Classic and you want to sync your images to Lightroom Mobile – it uses Smart Previews and get this….you have UNLIMITED storage for Smart Previews for free, so you can sync over as many images as you want over to mobile without worrying about that 20 GB limit at all. No limits – all free, free, free! So, how does that 20 GB get eaten up? From: a) shooting with Lightroom Mobile’s built-in camera (fills even faster if you shoot in RAW) b) Importing images from your DSLR or Mirrorless...