Do distortion pedals count? If so, three with another on the way.
I have a Boss SD-1 that's not on my pedalboard. It's modded like a Monte Allums GT, but with stock clipping diodes. I loan it to friends, or us it for jams when I don't have my board. Bersides, everybody should have at least one SD-1 around the house.
My main OD, after years of experimenting, is a Nutrino. I love its clarity, dynamics, lack of mid-hump. Its tight, chunky low end doesn't overwhelm my 18 Watter clone the way pedals like the OCD and Box Of Rock do.
As my "other" dirt sound, I have a Recto-mod DS-1 on my board. I use it mostly for times when I need really saturated high gain, but without the volume boost I get from the Nutrino. The DS-1's distortion pot is usually almost all the way up, and its volume control really low. (Example: I was forced against my will to cover Journey's "Separate Ways" at the recent band-reunion gig. I used the DS-1 for the arena-rock rhythm part.)
On the bench, I have a Rat clone. It's going to replace the DS-1 on my board for special cases, weird noises, and faux-Ebow parts.