Yes and no, I had just a bit left in my TOBS Lavender cream that dried up like a brick, it was such a small amount I could have used it up on the next shave, but I didn't truly use it up. With the current crop of creams and soaps, not even close to finishing one. The trick may be like @Guido75 does and use one exclusively till the ring of despair shows up. I think the soft PAA or Southern Witchcraft Croaps would be the easiest to use up.This brings me to an honest question:
"Have you ever finished a soap/cream/croap?"
Samples do not count!
Hmmm I can actually respond yes to this, but only one and that was my first soap a puck of VDH shave soap.