my friend was giving me a tip on this, and i think i might try it this year- we'll be there 2 weeks, moving 4 times,(5 days, then 2 days, then 5 days...)so she said to pack in 4 segments, use 1st set of bags for 1st part, then at 2nd part, use those sets, while washing and repacking 1st set for the 3rd leg of rtip, likewise, use segment 2 bags for segment 4, then go home and wash it all- so we could so 4 segment of trip, 31 and 3 use same bags, #2 and 4 use same bags- I think it'll make the moving around easier without a suitcase full of clothes scattered each time..... do I use 1 gal or 2 gal bags?