sheafification

I'm set to graduate this May with my PhD in mathematics (hooray!). To celebrate I thought I would put my new degree to use at UofReddit by taking requests for what math course ya'll would like to be involved in. What do you want to see offered?

My specialty is commutative algebra, but I should be able to do any undergraduate level class (and some graduate level) given enough prep time, so don't hold back on your requests. It can be a traditional class topic, a "topics course" that highlights some things in a particular area, a course on cross-disciplinary connections, whatever. Vote up your favorites and I'll try to figure out the most popular thing that I can reasonably do.

This is a long

I know almost nothing about Dollhouse and recently borrowed the DVDs of the first season. I've heard that some episodes are best watched out of order (like the season 1 finale should be seen sometime in season 2). What's your opinion on the best viewing order? Should I watch the pilot first? Should I delay the season 1 finale?

Thanks in advance for your suggestions!