..When I had a dolly, my solution to this was that I built an attachment that consisted of a piece of 2x4 with a large caster wheel mounted on bottom, and a long (3") bolt sticking up from the top. Hitch coupler on the dolly had a hole at the top, that the bolt on the 2x4 went through. A wing nut locked it on and held it in place, so that front of dolly was now on a wheel and did not have to be lifted. Didn't cost but a total of maybe $20 total to build this 'device'. I can email pictures of this device if anyone is interested.
When you attach this wheel/attachment on the front of the dolly, it became VERY easy to move around (no need to lift the front of it to move it). I would attach this device as soon as I unhitched the dolly, and take it off just before hitching it back up to the MH. Made it very easy to push the dolly under back of the MH when at campsite, so dolly was almost completely out of the way.
You could also attach a handle/bar onto the front of the wheel attachment, to allow you to push or pull the dolly around like a wagon without having to bend down. I was working on adding such handle to ours, but never finished it - We went to 4 down towing and sold the dolly before finishing it.
Also, the dolly you use makes a big difference as well. The lighter it is, the easier it is to move around by hand. This is one of the reasons the only dolly I'll own is the ACME EZE tow dolly.