I don't use parafin because I use disks around the lids. If you buy a case (12) of jars by Ball or Mason all you need comes in the box.
So...........what are you going to can??????
Take note of the yield, Riksmom...you'll come home from the market with what you think is a mountain of berries only to discover you'll only get 4 or 5 jars of jam.
Find a recipe before you shop!! That way you'll know what to expect in the way of yield. Also, be prepared to can pretty much the day or one day after you shop. You want only the absolute freshest ingredients going into your preserves!
Can't wait to see how much you like it!!