Making sure you don't forget to take your regular meds before the scene. Taking some analgesics like ibuprofen before the scene so your carpel tunnel doesn't flare up as bad from all that cane swinging. Having a comfortable set of clothes and shoes to wear in case you need to change. I believe it is everyone's individual responsibility as a player in the scene and a member of this community to protect themselves and care for themselves properly, and to make sure play partners are in good condition after we are done with them. To me the scene isnt over till sufficient aftercare has been given.
Some people spend the minutes after a scene to review it and share their feelings on it.
Some people need to just relax and save the intellectualizing for later. Extended Aftercare Plan on having quiet time and nap time when you get home or are alone. Check in with your partner if possible. Write a gratitude list. Write a love letter to yourself.