Hi guys I want to send letters/packs to customers via mail. So far I know to vacuum the drugs and to use gloves basically. What would you use to wipe off the pack/letter to make sure no dna is on it? Can the sender address be free fantasy or should I look up real people out of the neighborhood I'm shipping from? And what about the stamps and is it okay to wear covid mask glases and hat to drop off the pack or are there more safe services? Is there anything mail officers look out for that could make the package not go through? Is the package not going through my only problem if vacuuming and wiping of dna correctly or is there something else like the qr code for letters/packages...? Anything that helps is appreciated.