Wow, I'm glad to hear I'm not the only one! 6 long years have I lived with my sub-3.5 ignominy. Each year I think that my labors will help to erase the painful memories of failure, but during my annual "Where am I now?" self-review, I find contempt for my undergraduate underperformance to have persisted.
On the plus side, I did have a lot of fun underachieving.