Just some notes on canning basics, since I'm starting to fill in canning recipes.
You can buy new jars as needed, you can buy jars at thrift stores or go through grandmas garage and collect her old ones. All you really need to know is; are there any cracks? Is the rim chipped or intact? I have jars that are probably 50 years old and they work fine. Just inspect them before each use and throw away cracked or chipped ones.
Jars should be washed, very clean. Some say you have to boil them but I don't. A good run through the dishwasher or some hot soapy water and a good rinse will be just fine. This is a good case of cleanliness is next to Godliness, or in this case health, however don't get paranoid just get clean. Soap and water and a little