Yeah, it's a thing that can be really frustrating. And the sole try to put a container wheighing more than 50 pounds (a loaded wheelbarrow f.e.) into another equipped wheelbarrow/handdolly etc. seems to be a deathtrap for the char, too. you won't be able to get any of them out of your inventory again. Jaspymon had the idea of adding some rare world containers that hold maybe 600 pounds to the mod, that would at least be a possibility to solve the wheelbarrow-deathtrap-issue I think? Or can you dispose of the heavy container in your inv into toxic waste/acid, is that a thing? And in regards to picking up full wagons, maybe adding a mod that allows you to pick up *equip one item from ground/container that wheighs more than 50 pounds (to avoid exploiting the function with regular items) as long as you aren't overloaded yet would help? Greetings! Another thing I thought about was the possibility of having an "Unload" feature. When right-clicking on a container in your inventory, it would "Unload" that container directly onto the ground until the ground reached maximum capacity. I could unload the wagon-ception on the ground one cell at a time until the wagon inside became light enough to move out of the outer wagon. This would avoid the issue of exploiting wagons and wheelbarrows as storage containers, as you could not set it on the ground, but would solve the problem I keep having without losing all materials I've gathered, both of my wagons, and my character.