I play through as much of the Clarke book, if not all of it, as I can daily using a variety of articulations. Sometimes on C, sometimes on B flat. Still trying to get them all up to the suggested tempos. Lots of Rafael Mendez solos, orchestral excerpts and Real book tunes. I'm trying to understand Clifford Browns style better and incorporate some of it my own improvisation. I like to wind down sometimes and the end of the day with some easy dixieland trombone licks.