Usually i do about one hour of (smartcube-) timed solves per Day.
With my 30s average + scramble thats around 50 solves.
In addition to that I also cube while watching TV, listening to audiobooks, sometimes even in boring phone conferences.
I never counted but I guess that adds around 50 or 100 untimed solves.
Most of the time I use these untimed solves to try some new things, solve other colors, repeat algs...
For me that is the maximum my hands can do. Last weeks I was in vacation and on the beach I cubed almost the whole day but now my handy are hurting and my "beach cubes" are full of sand and salt