2Mil? 2 Mil is a LIGHTWEIGHT bag

Uline sells bags up to 8Mil! 2 Mil is the lightest they sell - I bought a box of the 2x3 inch 2 Mil for what I needed - a whopping $10 for the thousand - aka a penny a bag

The Container Store sells packs of (10) 4 mil bags for around $1. Sizes are 2.5x3, 3x5, and 4x6. I think you can purchase them on the website as well. Great for storing all sorts of stuff. AA batteries fit perfectly in the 2.5x3 bags.

I think you can find those at Party Supply stores.

For heavy duty 2"x3" zip-locks, I use the Pill Pouch bags from Walgreens.

Thank-you to all for such a quick response. I will definitely be following-up.

I picked up a package of those a couple years ago and they are nice heavy material, don't know what weight but they are sturdy, none of mine have failed and I've used some multiple times. They came in a package of 30 or 50 and less than $3. Even have a place in white on the side of each bag to write what's inside or date etc. Great for anything that might leak too, like batteries or tubs of ointments. Riteaid also sells them.

Lots of good sources listed. Here's another:
http://www.backpackinglight.com/cgi-bin/...ck2BRxx4g3kkMtQ

I have bought many of the cheapie 2 mil. 2x3's,100 per pack at Wally world (in the notions dept.),for like $1.50,throw a strip of clear packing tape around it,& 2mil becomes 6mil or better!

I use Aloksaks and like them. I have carried various items in them in a cargo pocket or even the rear pocket of swim trunks. I usually even have a SAK (Vic executive in it) and the Aloksak is usually folded over to reduce the size. I even fold over the closure and have had no problems. After hours in the water, everything inside is bone dry.

Once I took my kids to play in a water park type place and it was in my back packet of my swim trunks. We went down various slides over and over all day. Then we went kayaking in the ocean. End of the day...dry.

Sometimes I worry that the closure doesn't seem too secure, but not a drop of water has gotten in. And I reuse the original one over and over. It hasn't failed me yet. I use a newer one to hold my iPhone for hiking ad camping.

Joanne Fabrics stores have these in store and on-line in 3 sizes: http://www.joann.com/joann/search/search...equestid=279552

Michael's Crafts have the same, but only in the stores:
http://www.michaels.com/art/online/displayProductPage?productNum=bd0604