Since I am still new to all this and am finally at a point where I can start experimenting, I found I need to keep track of my travels through a white foamy field of soaps and creams, then down the sharp slicing trail of blades. I have read a few threads kept on here as a journal of sorts, seen discussions of excel spread sheets, and heard of marker notes on the mirror. I don't have a big collection and and am more interested in finding my great every day shave combination rather than to keep accumulating product.
For me a simple hand-written journal in a moleskine notebook is the best way to combine multiple interests into one. I am learning a new script, so writing by hand is useful. I also collect fountain pens, so using them justifies having them. I simply take notes every time I trash a blade of how it performed over its life of a few days. I try to change only one thing at a time per blade, so I don't have a huge amount to write. Trying to figure out a good combination of my 2 razors, 6 brands of blades, and 5 soaps/creams. I use only one brush, and only bowl lather so water and time are the only varibles.
So, what do you use and what do you use it for?
My most recent entry, from yesterday.