Well that escalated quickly... We went from someone wanting to spread a couple bags of salt to multi ton salt/sand users, and brine systems...
I'm going to tag along because I'm in the same boat... Usually once, or possibly twice a year, I need to do salt/calcium. If the weather isn't brutal, I'll use salt, but when it goes cold, I switch to calcium... We have played with sand, cinders, wood ash, you name it... It adds some grit to be sure, but it doesn't really aid melting much, and of course, once the ice does go, you have sand, or cinders sitting like jagged marbles on the drive...
I've used walk behind spreaders, and they work fine on flat ground. The drive where I need to do this has a nasty steep, curved section, and then meanders on over to the house. Naturally the steep curve lives in shadow for the most part, so that's the real ice location even when I can scrape down to the pavement. I've salted that by hand, but it would be a damn bit safer doing it from the chained up tractor seat... (yea, I have good yak trax, but I'd really rather not depend on that)
I do like the idea of a small tailgate spreader on the rear scraper... I don't believe it would work with my current blade, but I will have to upgrade that to wider when I switch from the 8N to the MF 135 in a year or two...
The little towable is nice as well, and would work just fine behind the Case 444 once I get chains on that... They're surprisingly pricey when I looked casually... I don't really mind spending the money if they'll hold up to the ice melt service, but I really don't want to have to buy one every other year... And sadly, no, I don't have a heated indoor space to clean the spreader in between uses...
The plan would be to load only a bag at a time, and run it out. The bags are small enough that, that shouldn't be an issue, and I don't end up with a solid chunk of salt/calcium in the spreader next time the weather goes south...
Oh, and look outside... We're having an ice storm today... Just perfect...