I find it annoying having to get 4 piece of metal/grass then having to run back to the homestead drop it off, run back to the grass/junk pile, harvest and do it all over.

Is there like a shopping cart or a wheel barrow or something you can build that will carry items in that way you can hold more stuff without having to make so many trips?

What happens when my junk pile is all gone? Then I have to potentially run 10 minutes round trip to the next junk pile for 4 piece of metal scrap?