Re: Unused paint disposal
As was stated, most decent sized municipalities have hazmat drop off points. If you do not, then call your county clerk and ask them where you can drop off your stuff.
If the paint is still in decent shape, how about donating it to a local theater? Their needs for paint do not require "fresh" or durable, so long as the paint has not coagulated, dried up, molded, or full of rust, they may be willing to take it from you.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!