Foamy face washes generally will remove make-up, although some long-lasting mascaras and lip-sticks might be problematic. I’m partial to Orgins’ Checks and Balances. You do need to be careful about getting it in your eyes, which is a where a gentle formula eye make-up remover can be useful.

The good news is that you really should be using a face wash before you go to bed anyway—that’s one thing supermodels are religious about doing—so you can buy it even if you otherwise need to be discrete.

The lard-like theaterical make-up remover often sold by TG stores isn’t really good for your skin, but will remove just about anything. The only other good point is that is that it can be used without water, so I now keep mine around to put in my emergency “boy bag”
(which has a change of clothes, etc. in case the car breaks down.)