There are so many ways to decorate small spaces. One of my favorite things is throw pillows. They can add so much color to your room. You can have the same bedding for years and just switch out the throw pillows, and it looks like you have a completely new bed.
When I travel, I have to have blotting sheets. It's so much better to remove the oil than to cover it up because then your skin just looks cakey.
When I have a good pair of shoes, I wear them over and over. Whether it's nice sneakers or a cool pair of combat boots, splurge on a pair you love that you can wear over and over with totally different outfits.
I'm not a huge fan of eye shadow. You spend 20 minutes working on it and then make one mistake and have to remove it all! I'd rather play up my eyes with winged eyeliner.