a gift idea for my wife's birthday?

we've been married for 9 years. She's going to be 30, and i'm 34. She is an amazing woman. She has lupus and a bone disease. a very sick individual. but still as beautiful as the day i met her. To me she only gets prettier with age. on to the question; her birthday is about 6 days away. she is away until then for medical reasons, and i want some good ideas for what to get her, or do for her. a ladies perspective might be preferred, but any will do.

she LOVES cosmetics, okay she's a makeup FREAK. she's knows her stuff, and is very gifted. it's like an art. anyone can put makeup on, but when you're good at it, it's different. We have an ULTA kinda nearby, but i wouldn't know what to get her.... anyone that knows cosmetics, knows that it's freakin complicated/ so much variety. i was thinking a gift card from there, so she'd have to spend it there. she doesn't like to spend money on herself, and it always doing for others/ and our family. she's just that way.

the reason i'm on here, is hoping i could get some good ideas maybe. i can't spend a lot of money, because #1 she'd kill me #2 we're on a limited budget because of her health reasons and others.

she's the type that would give to and help anyone without thinking twice. she's an amazing woman, very strong, very beautiful, and she deserves something nice. I'm always cooking, cleaning, taking care of the children, etc. so don't include that stuff. i'd appreciate any ideas if anyone has any. i just want her bday to be very special. thx again for any suggestions