Here's how I dispose of solvents. Any better ideas?
Latex - I wash brushes in the laundry sink which pumps up to the septic system. Maybe 1 quart of paint per year goes there so I'm not too concerned.
Mineral spirits and alcohol - this goes into a quart can and gets burned a couple times a year with old bank statements etc. The metal paint can is labeled "Waste Solvent"
Burning tip (pour it on before you light the fire or you will be holding a burning can)
And another, (stand back when lighting)
Yet another (a pile of paper will not burn, it has to be fed onto the fire a few sheets at a time then stirred with a shovel)