Tom is a good source of poly bags of various types and sizes
Tom Greenwell
TL Packaging
PO Box 117051
Carrollton, Texas 75011
214 533-6739
tom at tlpackaging dot com

Boxes, clamshells, and other
Resource Ag Packaging
12492 Hwy 155N
Tyler, Texas
888 877-3125

This is the source of my labeled plastic mesh bags
John Scobo
Polynet
PO Box 27
Three Rivers, MA 01080
413 289-2033
polynetinc at aol dot com

These people have a limited selection of ag boxes
Inland Paperboard
1111 Coliseum
San Antonio, Texas
800 292-6133