On Nov 12, 3:50 pm, observer wrote:
For household paint that hasn't been used in years and you don't want
any longer, how do you " properly " dispose of such paint? If it
matters, I have trash pickup and recycling pickup.

It depends if it is oil or latex, at least around here.

For latex: open up and let it dry, or soak cat litter into it. Then
seal it back up and take it out with the rest of your trash.

For oil: take it to one of the haz-mat disposal days. They run them
here about 4 times/year for just such items.