Sadly, now since being laid off work, I find myself switching fragrances too often throughout the day. Far too often. I could wear up to 6 fragrances a day sometimes; never layering them though, I have an antibacterial hand sanitizer here that I'll use to to get the scent off, wait for a few mins, and then put on something new.
Yesterday for example, I woke up, showered, wanted something bold yet good in heat, so I reached for the Horizon. wore that for about 6 hours, it was still going well when I decided to scrub it off and go with something completely different in Arpege, it wasn't more than 4 hours before this was dried up (my skin sucks Arpege right up) so I went crazy and did 4 different fragrances, TdH from sample decant I have, Tobacco Vanille, one on inner arm one on outter, Other side was Cigar on one side and Usher on the other. I had no where to go last night, just reading forums, playing games, talking to friends, social networking, etc.. sitting on the computer for most of the night and wanted to smell many different things.
But on days when I worked, I would usually wear one of my signature scents, come home and depending on what was left of it, reapply it if i could still smell the bottom notes a little, or if it was gone I'd go with something new.
Then there's usually a different fragrance on my pillow every night or sheets, one of m cheaper ones that I don't wear as often.