I like zipper bags for parts & patch cables. They take up less space and weigh less than plastic boxes and they don't scratch furniture.
I normally order bulk parts and cables for a big project and just keep it all in a cardboard box until im done trimming out. Then i transfer any extras to my zipper bags. I use those for service calls and smaller projects until the next big job. Rinse and repeat.
Avid Stamp Collector - I really love 39 Cent Stamps