I'm really out of practice with portrait/figure drawing. I mostly do pastel landscapes these days, so I'm setting a goal of at least once a week to do 3 portrait quick sketches in charcoal right into my sketchbook.
I set a timer of 15 minutes per head. That way I don't feel the need to overwork it or get it right just because it's on expensive paper or something.
I'm curious to see how these evolve as I get more familiarity with the timing and medium.