It would be interesting to have a collection of aromas which one purposefully uses on different occasions. For example a tree-like aroma which you use only in

It would be interesting to have a collection of aromas which one purposefully uses on different occasions. For example a tree-like aroma which you use only in the night after you've spent the day hiking, a lemon-like aroma the night after you've deep-cleaned the house, or a "fresh-air"-like aroma after you've had an extremely productive day. So you start to "Pavlov" yourself with aromas and then if one night you want to get productive dreams you use the "fresh-air" aroma, or the tree-like aroma if you want to dream of traveling. I wonder if this would work.