Smells - gifts that keeps on giving?

Do you also have a thing about scents? About smells? (Scents when they're good, smells when they're bad, perhaps?) As in, some linger far too long, others never long enough?

And why do I bring it up? you ask. Well, when's the last time you smelled anything like burnt popcorn? Like the burnt popcorn that's permeating my home. Still. This morning. After I burned it yesterday evening. (Note to self - just because some microwaves have "popcorn" buttons, don't assume that if you press them twice they're automatically set to pop the little bags for you.)

I hadn't remembered it being so strong. Or so long-lasting. Wonder how I'll get rid of that satisfactorily???