But, there is a cost to all of that stuff. Monetarily because I have paid for moving and storing all those boxes over the years, but more so the mental tax of "I should really use these 5 extra laptops that aren't worth enough to bother ebaying but I can't just throw them out because someone else (that I don't know and have no easy way of getting in contact with) could use them and darnit I spent lots of money on this crap."
The best solution for me was taking the time to reduce all of those boxes of cables/parts/etc down to one well organized box. It was actually much easier than I thought. So much of it was old tech that I would never realistically use like SCSI/parallel/serial cables, etc. For everything I kept, I grouped like items together and put them into ziplock bags so I could easily see inside. Now, instead of dreading the box dig, I find it gratifying. The laptops and old phones are still a problem and I keep thinking that I'd run into some techie kid who would use them, but I think that techie kids these days are into different stuff...