I only offer a little 10-15 min massage on hands or feet if the client asks for it and I would charge an extra £5.
All my facials have masks which stay on for 15-20 mins. During this time I tuck up the client really warm and they relax and listen to the music with eye pads on. Most fall asleep.
I pad round as quietly as possible so as to not disturb them but try to clear up, write up notes, fill in receipt, check messages, wash up bowls and brushes and plan what retail I might interest them in.
If time for a client is short I might do a gel soak off or file nails to fit everything in for them but only with their agreement.
A lot of my clients will have a manicure or pedicure followed by facial so this way I can paint their nails and they can be drying while performing the facial. Then the polish is all dry and no chance of smudging!