| | Bubble mailers
I bought bubble mailers (size #0) off eBay--no brand or at least I don't remember the brand. The weight is 0.8oz each. And I bought a 'Jiffylite' from local store and the weight is 0.4oz each. 1 more oz in 1st class parcel cost $0.17.
I can't remember the cost of either bubble mailer now just want to share that more expensive jiffylite may save you some postage.