I'm considering applying to grad school for economics the year after next, taking a year off between undergrad and start of grad school. My concern is my GPA, which is only a 3.0 (exactly). Within my major the GPA is more like a 3.5, but I don't think that carries a lot of weight. Otherwise I expect to have a very strong application, including 3 letters of recommendations and awards for my senior thesis here. My question is, if I was to take graduate level courses (or maybe more higher level undergraduate math, ie. real analysis) at a public university, would it at least partially supplant my GPA as an undergrad?