I'm late, but I wanna join!
I plan on cowashing at least 3 times a week with various conditioners that I have laying around... Hairveda Acai Phyto, Giovanni Deeper Moisture, Giovanni Magnetix, GVP Moisture Balm, Aubrey Organics Island Naturals, Tigi Dumb Blonde... mostly a lot of stuff that I'm trying to use up, so I can buy even more stuff.
When relaxed, constantly having wet/damp hair helped me retain like crazy, so I'm hoping to get that retention this time around, along with more curl definition. Also, the extra moisture wouldn't hurt.
I shampoo about once a week or so-- maybe more, maybe less. Don't really keep track.
Shampoos that I rotate are Ojon, Beautiful Curls Curl Activating Shampoo and Roux Moisture Shampoo.
ETA: I cowashed tonight with L'anza Kukui Nut Conditioner.