So my birthday was earlier this week and a sweet friend sent me a $25 gift certificate to Amazon. I'm overwhelmed by all the things I can buy (and also half telling myself to save it and spent it on Christmas presents for other people but that's no fun). I'm currently writing my thesis and have about 4 books in queue for when I finish so I'm not looking to buy books. Spotify is my current bff so I don't think music. How about beauty?

I have *some* makeup skills but not a ton and as a grad student I never have any money around to buy a lot of it. My current routine is: foundation, blush, mascara, lipstick, gloss. I'm looking to up my game, especially in the eye department. I could also use some lip color or nail polish upgrades. Recommendations??