How can I efficiently manage my stash unit's space/weight?

Solution 1:

Here are a few ways I manage my storage,

1. Always scrap junk before depositing. That way you don't have heavier junk items in your stash and everything is condensed down to the components making things easier to find.
2. Useless Items. If you're near a water source, you probably don't want to store dirty/boiled water in your stash since it's easily accessible. Additionally, I've personally found myself forgetting about those higher level legendaries by the time I get to that level, so I've stopped storing them and starting selling them. Likewise, I know I'm never going to be interested in laser/energy weaponry so I've started giving away all of that respective ammo.
3. Bulk Components. Some scrap components are lighter weight when bulk than their scrap counterparts (not all, definitely not all). More details here thanks to Timmy Jim for providing the link. Bulk components can be used just as regular individual components and will be broken apart on an as needed basis.
4. Odd situations. I have tier 3 pack rat (-75% junk weight). This makes some previously already lightweight items (like screws) weigh nothing. Obviously there's a risk of dropping your junk on death (PVP or PVE) so you have to determine if that's a risk you're willing to take since pack rat doesn't apply to your stash.
5. Avoiding Stash. I have about 250 carry weight now between my deep pocketed trapper armor that gives +10 carry weight and the strength perk card that gives +10/20/30/40 carry weight. Helps me avoid having to put things I would have otherwise put in my stash.