I do as everyone else seems to do, rip and store in sheet protectors. My categories are different - I have Christmas-themed projects and artsy-fartsy projects. Everything else is sorted into how badly I want to make them. One binder is stuff I want to make
right now.
Another binder is stuff to make someday, when I have the needed skills, or want a certain kind of project (like handwork), or it's for babies and grandkids, which are a ways off. Another binder is full of visual inspiration; not necessarily things I'll actually make, but I might take inspiration from. For instance, this quilt has a neat border, that quilt has cool sashing, etc.