Each grade level has it's own hanging file:
K-1 is taking up a lot of space, but I'm sure as the years go on, they'll do less and less cute little things that I feel I need to keep, right?:
Have fun with the crates! I got mine at Walmart for like $3! Add some ribbon and a glittery name, and you're good to go:
Nothing to really write home about, but it works for me and maybe it'll work for you, too!