Free: Contests & Raffles.
I bought the Cabela's rebranded ones this year for my WY trip. We packed up 8 animals worth of meat into those things with only one bag having an issue. I think that issue may have been my fault in loading them into the cooler on the way home.I'll be buying those again for sure.
Try the ones amazon sells.
Save some pennies up and step up to a small chamber sealer machine. I pay roughly $.035 per bag and get a much more quality sealed product vs external sealer bags.
mk8, be careful with the blanch times on veggies, especially cauliflower. The chamber sealer can smash them into a single mass of cauliflower mush. I partially freeze veggies on cookie sheets before sealing, that helps as well.