Instead of using filing cabinets to store the handouts, lessons, and worksheets I use throughout the year, I keep only one copy and store them all in one handy dandy binder. I keep each of my copies in sheet protectors and then place them in chronological order. I also add and label Post-It Tabs for quick and easy reference. Below is my Handouts Binder for Physical Science. I'll actually be teaching both Life Science and Physical Science (7th Grade and 8th Grade) this year, so I'll put the new binder together throughout the year.
100+ Sheet Protectors
And the Post-It Tabs I use match the tabs I've placed on my TE.
I honestly never have trouble finding anything. It's great! Happy organizing!