Let's see...
ATT with two handles, three plates and two caps, that's two.
Timeless with cap and handle and two heads, is one.
Mühle R41 and R89 plus stock handle, that's one, but with a spare handle it's two.
New, Fatboy 196X, Superspeed 1978 and Super Adjustable 1978, is four Gillettes.
Slant 37C, Futur and Vision, that's three Merkurs.
Plus a RazoRock Mission and a Phoenix DOC.
Adding it up, the number is 14. But how many of these do I use regularly?

Hence, a purge has begun. And there surely are new acquisitions on the horizon.