You've never field stripped a cigarette? It's a must to wash hands after one does this, though......especially if your a woman. I carry Handi Wipes just for this.
When your outside smoking, and when your ready to put out the cigarette, you step on it to put it out.
Then, you tear the paper off, and shake off the remaining tobacco. You then pull the filter apart into tiny little shreds as well as the paper on the filter. You can then just let the air take it. You won't even know it was a cigarette once you get finished field stripping it. It's pretty cool, but it does make the hands smell funny. Hence: Handi Wipes.
I usually don't have to field strip cigarettes, though. I am never far from an ashtray or receptacle.