I acquired free a wooden (a good stout heavy duty type plastic might be ok also)) cable reel from a electrical contractor about 2 feet in diameter probably 8 inch sides and about 16 inches wide, some 1/2 inch sq tubing and pipe and built a cable reel that has a hand crank on the side for reeling in my 3/8 cable, probably about 125 feet. I't built where if need be a helper can help lift into back of a truck. I can leave the reel in the back of the truck if it does not have to be unloaded. If the cable gets slightly distorted from going through snatch block, etc, not a big deal, can still wind it onto the reel. I have a woman helper that can wind up the cable, while I'm doing manly things, so the reel is user friendly when winding and storing the cable. (we always wear gloves when handling the cables)
I use the cable, snatch blocks and electric winches that can be remote controlled IN/OUT by one person from a remote location while chain sawing on tree to make a controlled direction felling. The cable was a PIA to coil and un coil each time I needed to move or store so I built the cable reel. Works great. I also built a little trailer low to the ground that I can pull behind a ATV with the cable reel riding in the trailer if I need to move to different trees
It has a base on the bottom so it's stable (will not tip over if using the ATV or a vec to unreel the cable while driving. I use Chicago grips and Haven's clamps for connecting to the winch cable and to the cable used on the tree and therefore I do not have to always unload the cable reel from the vec and also can leave the excess cable that is not needed on the cable reel. The Chicago grips and Haven grips are the type that have the safety latch that keeps them on the cable if they get slack.. I acquired the cable clamps as used clamps over the years by just keeping a eye and ear open.