DCL
Spare shoes aren't worthless. There are plenty of things that you can do with them.
I often find boots and shoes in gutters and ditches but only orphans, never pairs. People have tried to explain why you only find single boots and shoes. No one has really solved this. I once saw a car accident from my apartment window. A car hit a truck and the truck's driver sailed out of the side window. One of his shoes landed near the curb. The truck driver was OK. He stood up and sort of ran around in a circle all confused. He never did pick up his shoe. He went away in the ambulance one shoe on, one shoe off. Orphan shoes come from car accidents. That's my theory.
Here are some ways to reuse those shoes and boots. I've added illustrations. Don't laugh.
1. Pot for Plants
You can grow plants in boots and shoes. Remove laces. Poke holes in the bottom of the shoe for drainage. Fill shoe with potting soil. Add plant. You have a plant growing out of a shoe.
2. Boot Organizer
You can make an organizer out of old boots. Figure out how many old boots you have. That will determine the size of the wood you are going to need. Start like you are building a bookcase the width of a boot. Instead of shelves, build pegs to hold boots. Use the boots as storage pouches. I've attached a rough schematic of this project.
3. Pool Table Pockets
This is a little far-fetched. I admit it, but I think it would be cool. You could build your own pool table and use boots for the pockets.
4. Donate Single Shoes to Charity They have single shoe charities online. These people help get shoes to amputees and people who have different-sized feet. 5. Wall Pockets This is much like the boot organizer but for shoes. You can nail shoes to the wall of your shed and store tools or other items in them.