I hate luggin water. Under fallen trees, over rough terrain, it sux. At 8 lb's per gallon it can get real heavy real fast. The best way around that is proper planning. Plant near a water source. Even if it is a swamp. Take a ph sample and adjust your soil mix accordingly.
I stashed a kiddie pool out at the spot to collect water also. They are wide and can ghold a ton of water plus they are cheap. If u are from a place where it barely rains in the summer and no water source nearby, u need to start collecting water a few months early at the location with whatever method u choose. Alot of good ones on here.
For pumping water, I use a Danner Mag Drive 900gph pump, a deep cycle battery (the smaller the better, unless u plan on leaving it at location), and a 12v dc to 120v ac converter. The converter cost 20 and the battery cost around 50, the pump I had, but cost over 100 at the time of purchase. This is a good alternative to loud, heavy gas operated pumps.