I like the "Garden Way" cart (the large one) for things that will fit, and I usually can manage a load 1-1/2 to 2 times the height of the sides by standing a few "stakes" on the sides to contain the upper stuff.
For larger brush, like saplings or limbs from felling a tree, I prefer to just grab one or two by hand and drag. Anytime I've tried to get more clever, I spend extra time picking up the pieces when my "clever method" fails, than just making an extra trip on foot.
I use a large Vermont Cart. It seems to hold as much as I care to handle.of course, the dragging method, mentioned above, comes into play. Finally, I have a PTO chipper that reduced the volume of large branches nicely.
Good decisions come from experience. Experience comes from making bad decisions. Mark Twain
I use a 4-tine straw/manure fork with a full length handle. It's sort of an oversized pitchfork, and the tines are wider at the tip so material doesn't bind. It lets me stab into a pile of branches or sunflower stalks and lift/drag them where they need to go.
The other method is to pile stuff on a beat up plastic tarp and drag it. This works better with two people.
I now have a tractor with forks, but unless it's a big job I don't bother. The 4-tine fork is faster.
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