Some garden centers like Home Depot or Lowe's have a rack for free pots. If they don't, you can ask if they have any free pots you can have. What's awesome is once in a while you may stumble across a nice ceramic, clay pot too!
These pots would be great for:
- planting seeds
- propagation
- transporting plants (For ex: to give to family or friends)
- as a temporary pot for your existing pot being too small
- or even to give as a gift. You can use fabric to cover the pot or use burlap.
All are great uses if you're on a budget plus you're reusing so these won't go to a waste!