I just figured it out.

If I want to graduate in two and a half years (five semesters), I have to take a minimum of 21.5 credits a semester.

If I want to graduate in three years (six semesters), I have to take a minimum of 18 credits a semester.

If I wanted to keep myself at an average of 15 credits a semester (which I've found is manageable with work and a marriage, not to mention keeping my sanity), I would graduate in about seven semesters, or three and a half years.

.......

It would appear I am in need of some restructuring of my schooling.

If I wanted to graduate in three semesters, I could. If I dropped a major. (I'm currently double majoring in Environmental Science and Anthropology - I don't know if I've ever explicitly stated that.) I thought I could maybe do summer semesters and get out more quickly, but it appears the vast majority of classes I need are not offered over the summer terms. So...

Shit.

I'm never going to grow up. I'm going to be a fourth year senior by the time I graduate.

Bah.