At least that's what I used to do.
I have a room full with crap; even at $1/day per case (which I would pay long term), I can put enough cases in there and easily get them out to pay triple the mortgage on the entire house every month... All my chinese and thai friends (where I store stuff now) would gladly long term store cases in their houses: 20-30 of them for sure.
Short term they would not but 2 weeks or more; many people working abroad would jump at that.
Seems I always forget something or forget to bring it home. Would be nice just to not stress about them during packing and just focus on clothes laptop etc
I don't keep dupes of everything. My cables and plugs bag is the same one I use day-to-day. But I do keep a general travel pile that has most of the stuff I may need on a trip other than clothing--which varies by location/season/type of trip.
And that was also a weird case where I had a hiking trip after a multi-leg business trip so I didn't want to lug all my gear with me. In general, I travel lightly enough that I'm not checking luggage anyway.
Would this entail buying several sets of clothing, tailoring them if needed (some of us can't buy clothing off the shelf), doing laundry and stashing them in the local locker every time you visit?
Also, the other problem for me is temperature, formality etc. -- for city i with mᵢ seasons, and nᵢ situations (casual, formal, etc.), I have to own ∑ᵢ mᵢnᵢ sets of clothing.
That's very interesting, I'm sure more and more people will need this in the future.
How much would you expect to pay?
I probably wouldn't pay more than that to permanently store a suitcase somewhere. That would be the ceiling for me.
Some frequent business travelers may be willing to pay more.
I'd see it as a $x/mo + $y per bring it to me at the airport (or maybe hotel, depending on the situation)
There are luggage delivery services but they're fairly expensive especially if you normally get free checked luggage.