Unitedmover.com - Moving Tips
Packing Materials
Use only strong, corrugated cartons with covers. We can supply you with specially made cartons, for everything from mattresses to clothing and mirrors. The added protection of mover-provided cartons may avoid damage that results from the use of poor-quality packing materials.

Your alternative is to collect boxes discarded by your grocery or liquor store. Save old newspapers for use in packing, but remember that ink may rub off and stain clothing or other items. Please note that insect eggs and insects such as roaches can travel in food boxes. Keep this in mind when getting boxes from food stores.