I was talking to a friend of mine who moved with his wife to another state about 10 hours away around 13 years ago. At that time they got 4 climate controlled storage units to store stuff they weren't moving (they probably had some of these units even before they moved, I'm not sure).
They have since managed to clear out two of them, around 5-6 years ago, but they are still renting one empty and two full ones because they will "need the empty unit to stage things into" from the next full one they clean out. Someday. While it is possible to get storage units fairly cheaply early on, in my experience managing one for work they raise the rates to $300+/month for a climate controlled one within a year or so. I'm guessing ~$1000/month for these three units, though when I asked they weren't sure what they were paying.
I asked about storing this stuff in the house they are renting, since it is larger than they need, but I'm told then they would never get around to clearing it out. A decade apparently doesn't qualify as "never". Since the wife has the ultimate decision on what stays or goes, and she does not drive long distances, and they have dogs which cannot be left more than a few hours so they can't simultaneously go anywhere for long, "someday" is likely to be at least another decade away.
In the same conversation it turned out that either his former or his new employer decided to discontinue their pension plan and pay them some kind of lump sum. Neither of them is sure what they did with that lump sum, how much they got, or whether it needed to go into a IRA or a regular account. . . They were sure he could never retire though (she hasn't worked in about 20 years, so not relevant for her). They could be right.