where can i buy mylar bags

Hello to all. I was wondering if anyone knows what type of local store would carry mylar bags instead of having to buy them online. None at walmart or home depot Any ideas? P.S. this is my 3rd post (my second never materialized) - asking the same question. Please and thank you

Where do you guys buy your thick mylar bags and oxygen absorbers? Where's the best deal that you've found on them? Just curious to know where others are getting their prep supplies. Thx!