Does anyone know where to find bubble envelopes really cheaply for first class usps shipping? I'm sorry I'm pretty new and would love some general advice from any old timers to get shipping materials cheap (tape, envelopes etc). I know you can get free boxes from usps for priority mail but you are on your own to ship first class it seems. Is buying in bulk the answer? Any advice is greatly appreciated!
Properly handled liquid nitrogen "dry shippers" can be transported without any additional regulations. Be sure that all the liquid nitrogen has been removed from the shipper before transport. Failure to do so can result in substantial fines. Contact DEHS for additional training on shipping biological materials with a "dry shipper". For further information, see ".