I use the Shave Buddy app so my collection is on my phone and I can look back at my shaves and rate them, etc. That said, as far as selecting the day's soap/aftershave I generally think of what type day it's going to be. If I have some stressful presentations, Pinaud Clubman aftershave and a pairing soap is the standard. Summer I use a lot of Bay Rum, Citrus, and Old Spice. Winter I use lots of leather, fern and wood scented stuff.