[Fey]

Ah, I had a neighbor pull that one me too, I'd recently gone from third shift grunt to third shift manager so I was working 12 hours out of every 24. My house was already messy cause I'm like that, and then it just went downhill fast. I bribed a couple friends to come over and help me, and if I didn't recognize the item they asked about, or hadn't used it in a year I got rid of it. So, maybe you should threaten him with that. Make a huge pile of his things, tell him he has one day to get it put away nicely or it's getting donated. If he really wants it he'll get it, if he doesn't someone else might need it.