Here are a few things
One of those little tiny hardcover books that say how you feel about her. You can find them at the cash registers at major book stores.
A bottle of body spray. Not perfume. You can find this at most stores (like ShopKo, Target, Walmart, Kmart, Fred Meyers) next to the bath salts, body wash, lotions, etc.
A pretty-colored shower lather thingee. You know, the ones that are made out of scrunched up net material. They’re soft and body wash lathers up so nice in them. I use one all the time. (well, not ALL the time…just when I’m in the shower)
Depending upon where you live, but gloves. Those little stretch-to-fit-any hand $1.50 gloves. They come in all colors.
A little guardian angel pin. They always have a cute little poem with them and cost hardly anything.
Go to a stationery store, and buy a sheet of pretty stationery. Write her some prose (or if you just can’t, find something pretty on the Internet) and write it out on the sheet. Coming from a woman, trust me - this will mean so much.
Hope this helps. If you still need more ideas, let me know.