I have had FS machines for a very long time. I now only buy pre-made bags to save the sealing part of the machine. I also save used bags--NOT used for fresh meats--to be liners in larger bags. Put items in used smaller bag, put in new bag and seal, toss small bag or reuse, use for sharp edged items.
I also use those plain food storage bags to put items in before putting in FS bags. The machines are great for any/every day use.
I get my bags in bulk from
https://foodvacbags.com/