I put everything in ZipLock Bags: 1pr pants, 1 LS shirt, 2 T-shirts, 4pr-underwear, 4 pr-socks; then squeeze the air out of the bags.

This will keep me moving for 4 days before I take a break to do laundry, forage for supplies, and rest up.

That's my plan and that's how I train!
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QMC, USCG (Ret)
The best luck is what you make yourself!