Do you know where the cheapest place to buy jars is?
Amazon has some cheap jars, but check for sales at places like michaels or other craft stores! They often have sales where they are like 50%+ off. You can also check places like marshalls and home goods, which will often have good prices on jars. Thrift stores and grocery stores can be good places to check, as well as dollar stores! If you have a Daiso in your area, thats a good place to check as well. Honestly though, reuse stuff like old alcohol/beer bottles, or spice & sauce jars. I save spaghetti and jam jars, or old perfume bottles… it can all be re-purposed!