Stock up on school supplies while they are cheap
Purchase extra crayons, pens, glue sticks, pencils, paper, and other supplies that need to be restocked/replaced throughout the year.
Organize the supplies
Assign an area (drawer, container, or cabinet) to store the extra supplies. Make it easy for the kids to get what they need.
I prefer to use a spare drawer (pictured) so everything is easily visible. Drawer dividers are great for keeping like items together.
In my house, three-ring binders seem to fall apart halfway through the year, and there is a significant price difference after the back-to-school sales are over. Since I use them for my business, too, I like to keep a good stock of them.
The cost of a pack of crayons can jump from $.50 to over $2 when they return to normal price.