When you say "crepey" do you mean that the skin of the eyelid seems loose? If so, I have a similar problem. Cream shadows are impossible to work with so I avoid those. I have to close my eye and lift my brow a little to smooth out the skin so I can apply my e/s evenly.
I don't think lasers or Botox would help this area; I'm saving my pennies so I can get an eyelift!