+1 to the (majority) PP's
1. Get a great haircut that compliments your face and learn how to style it -doesn't have to take long/use a million products
2. Have a good skin care routine- wash your face in the morning & at night, use a tinted moisturizer with sunscreen, some mascara, and a lip balm to keep your face looking fresh
3. Go through your closet and get rid of anything that doesn't fit and cannot be tailored to fit - less is more and you would rather have a few well constructed pieces that are tailored to you then a hundred pieces where nothing fits properly
4. Refresh your basic pieces - those basic pieces that are the building block for your entire wardrobe should be refreshed periodically. This is a great site to help with that
http://www.puttingmetogether.com/2013/02/wardrobe-from-scratch-part-4-starter.html