I use a small Sierra Club backpack with a main compartment and two smaller pockets. The main compartment holds the swag bag, a cache repair bag (extra ziplocs, logs, wet wipes, paper towels, etc.), gloves, first aid kit, clipboard with maps, and extra batteries. The middle pocket has slots for pens, and these also contain our extendable magnetic retriever, extendable mirror, tiny flexible LED light, tiny Leatherman-like Gerber tool, tweezers, and a Silva compass. Smallest outside pocket carries two GPSrs, and a PDA.