Kitting-up old, worn-out undergarments into ready-to-use bundles.

Don't throw your old clothes away! Inspect your undergarments once a year, kit-up worn socks/tee-shirts/underwear into "one final use" bundles. Keep them handy for dirty jobs, camping, emergencies, or "heavy-out, light-in" trips where you will need the packing space on return trip for contraband instead if clothing. : )