I have a wheeled hose reel and take it out of the van. I angle it in the direction I'm heading off to.
Some gardens are quite twisty to negotiate pulling a hose around, so I wheel the hose reel out to the furthest point, tie the end off and walk to hose reel back to the van. I find this much quicker in certain circumstances.
This is one of the reasons I haven't fixed my hose reel permanently into the back of the van yet like Tim has.