This may be a dissenting opinion, but I don't think you necessarily need to think of it as a huge time investment. Put it on, smell it; smell it ten minutes later; if icky, scrub and if yummy keep wearing it. I think you can pretty accurately record whether you like something at the ten minute mark even if you don't capture every nuance that might happen over the next few hours. (Caveat that some scents morph beyond the ten minute mark, but I've only had one or two significantly change on me beyond that mark)