These are my ideas. Do you find additional combinations that are usable?
InAn Take an animal with you and use the spell to trace where it went to get out
MuAn Changes a piece of clothing into a leather rope that is left behind you (Ariane style)
ReAn Make an animal follow the scent he has left on the way in to get back out
CrAq Create Acid to leave an arrow on the floor, or: create wet footsteps
MuAu Strengthen air currents so you can use a torch to see how the flame reacts
InCo Find out where you have been before to retrace your steps
MuCo (Ritual) become a snakelike creature (several miles long) that stretches back to the entrance
ReCo Leap of HomeComing or similar spells
CrHe Moss grows in your footsteps, create paint on the wall
InHe take some herb and trace where it has been already
MuHe Changes piece of clothing into a rope that guides you back (Ariane style)
CrIg Torch the walls black to mark your progress
CrIm: Create spoken or visible illusion to guide you on your way out
CrMe: The perfect mind to remember
InMe: read someone's memory of where she went
CrTe: create stone signs pointing your way out
MuTe: Leave tracks on the stone floor
PeTe: Destroy rock to leave signs
ReTe: Sculpt rock to leave signs to find way out