I never used a mirror to work out these things.
Perhaps I can use a magic mirror to check on him.
Maybe I should cut the mass out using a mirror?
Changing to old clothes, Harry used a mirror to get the effect.
Use a mirror if you can't see the back of the fitting.
He could sure use a barber, or at least a mirror.
The third group of patients didn't use a mirror at all.
Using a mirror may make it easier to see what you are doing.
Plenty of material, and he'll use a solar mirror to get the heat he needs.
But I had to use a mirror to see it.