Glyph Tattoos - Could that be a thing?

I always thought that as Luz grew older she would find more efficient ways to use glyph magic, because at the moment the amount of spells she can use are limited to how many glyph sheets she has (of course, she can always draw glyphs on any surface in her environment).

So I thought, wouldn't it be BADASS if we saw 20 year old Luz rocking glyph tattoo's on her hands/arms (or any other part of her body) that allow her to perform her spells more efficiently?

For example, for a light spell, she could have the light glyph tattooed onto her palm and whenever she needed light she would just focus on the glyph on her palm and she would be able to produce an orb of light. Of course, she has to find a way to make sure the glyph doesn't disappear after the spell is performed.

Also, if she had a witches staff, she might even be able to perform her spells remotely.

Any ideas to expand on this? Do you have your own ideas?