Something I would always suggest investing in would be your makeup brushes. I've always been a fan of the MAC brushes, but I just discovered that Sonia Kashnuk also has a line of high quality brushes available at Target. I have already bought a blush and foundation brush. As far as I noticed none of the brushes run over $20, which is pretty cool seeing that MAC brushes could run you up to $45.
If you are just starting your brush collection I would start out with a foundation brush and a good powder brush. I would also get a good eye liner brush. Everything else you can do without until you have the money. Trust me, I've put my makeup on with just my fingers, well, all except the mascara...wink wink!
Sonia Kashuk large powder brush $19.99
MAC large powder brush $42.00
