This has nothing to do with answering the OP because numerous people have already contributed sound advice. I'm just stating that it would be awesome if they followed through and improved upon Smell-O-Vision that was created back in the 50's/60's. Someone could post what the smell was and give us an actual sample! 
Yes, these are the things I think about on a regular basis.

Yes, these are the things I think about on a regular basis.