I am a list maker! I have lists of chores to do, leftovers in the fridge, things to buy, meal plans, things to pack for trips, etc. I am afraid I am going to have to start making lists of my lists just to remember them all. :o)
But in the process of making all these lists, I use a good bit of paper. So instead of buying note paper, I simply "make" my own. I use junk mail, printer mistakes, old fliers, (my Mom uses over printed school papers from the elementary school she works at). As long as the paper is only printed on one side, it is usable again! Maybe you can use "oops" prints from your job or church. I usually cut a regular sized sheet of paper into 4 pieces. These tend to be the perfect size for me.
You can also use the scrap papers for other things. Taking down a message for someone, leaving a loving note for your spouse or child in their lunch box, leaving a reminder for another family member on the bath room mirror, jotting down an address or name, or writing down something you want to look up on the Internet. Make flash cards for your child with simple words or memory cards for your teens upcoming test.
I keep some clipped to the fridge with a magnet and some in my purse. Keep a stack next to the home phone and in the console of your vehicle. Maybe even on your night stand for those middle of the night "Gotta remember to do that in the morning" things. Don't you hate those? :o)