3M Bubble Mailers - safe sound shipping!

Part of my business includes shipping over 20 packages a day, so I use about 5-10 3M self seal bubble mailers in assorted sizes everyday.The mailers are durable, with strong yet cushiony bubble insulation.The self seal glue strip is strong and fresh every time.In all the years I have used the 3M mailers, not once has the glue strip been dried up and useless, which is something I cannot say about other brands I have tried.I like that I can get the mailers at Sam's Club in boxes of 25, but wish I could get them in larger wholesale lots.Another problem is I can only find them in 3 sizes, and I would love to be able to find large office sized boxes of the mailers in the 5 different sizes that we use.It would save me a lot of trouble.Overall, if I have a choice in brand when choosing mailers, I will always go with the 3M brand, because I know I will get a quality product.