IANAL and don't have a C Corp, but doesn't that depend a lot on how you're being paid?
I know "double taxation" is the bogeyman and is undoubtedly an issue in some cases, but for truly small setups of expect taxes to either be passed through S-Corp style or for larger businesses to be low because a lot of income may be offset by expenses (e.g. paying a salary or wage for time spent).
If you aren't PLANNING FOR SURE to get investment.. C corp is a pretty awful thing to voluntarily subject yourself to.