"best" way to send cards

[buymycards]

Originally Posted by bobbyw8469

I tried to use brown tape before (imagine just like clear 3M packing tape....but brown). I was quickly told that was incorrect - that is MUST be the gummed brown "paper" tape.

You have to use tape that is porous on the outside so the red USPS stamp can be placed on it. Every seam is stamped to prevent someone from opening the package and then resealing it. It doesn't have to be gummed tape. Adhesive tape is fine as long as the other side of the tape will absorb ink.