Reposting from previous thread:
I'm homebrewing a system to try to make rigorous travel fun and interesting. I fully expect to eventually accept giving up on DnD and using something else, but for now I'm still trying to cram this into 5e.
The idea I'm toying with currently pertains to encumbrance. Nobody wants to track that, it's not fun and it's a giant pain.
My solution is to give characters "slots", and you can carry whatever you want so long as you have a slot available.
For example, you have an armor slot. Any one set of armor can fit there without penalty. Unarmored barbarians can use it for loot if they want. You also have an ammunition slot, which can hold a set number of any ammunition. You have a handful of weapon slots.
Beyond your normal equipment that you rarely change, you might have a food slot, a water slot, and then a handful of free slots for holding anything. Loot, more weapons, additional supplies, rope, whatever.
Encumbrance, then, is a price you pay to manifest additional free slots. If for some reason you decided to carry every martial weapon in the PHB and then stumble across a magical potion, you can either drop one or take on an additional level of encumbrance to pick it up.
Obviously, the specific balance re: number of slots of various types is still wide open, and I'd rework encumbrance penalties as well.
Rather, does this seem like potentially a fun mechanic? Something that would create meaningful choices without too much bookkeeping? Keep in mind this would be part of other systems, for a campaign based upon travel and survival and exploration, possibly even a hex crawl.