Meditating in stressful days
One of my favourite quotes is an old Zen adage


  You should sit in meditation for twenty minutes every day - unless
  you're too busy; then you should sit for an hour


I find that both infurating and inspirational at the same time. So on the zen theme, when I am just way too busy I can't do mindfulness of breathing or metta practice. So the one I turn to is a just sitting or zazen type practice. I just sit there and ask - what is it like to be this. It might not be traditional zazen but it helps me.

Ironically when meditation is going well and seems to be taking off (if that makes sense) then I also do just sitting. It's the beginning and end of practice for me.