What do YOU do with them?
This is a subject that I have never seen on this site.
As you know, old, worn out.dull, broken blades can be sharp, very sharp if you get poked or stabbed with one. So how do you handle this problem? If you put your trash in a plastic garbage bag don't put them in the trash can. If you don't get poked maybe someone else will!
OK, I'll tell you what I do with them. I use an old peanut can (or a coffee can) near my saw and as the blade is used up in one way or another it gets tossed in the "dead can" and the top put back on (in case of a spill) and then can be disposed of, can and all, in my regular trash at a later date.
I don't do as much cutting as allot of you guys but, I'm guessing that it will be a long while before you fill that can with 1/16" strips of steel and mean time you will save yourself and others from allot of "band aides", "ouches" and "cussin" not to mention anyone else that might come in contact with those worn out, rusty, broken old blades.
Stay safe and I hope this helps and keeps some one from saying "DOG GONE IT!!!"
Rog