Took her into the shop.
Pulled my head out of my ass and started taking it to the place where most of the work had been done. The mechanic was like "Hey, isn't that Brant's old car? He was a really good guy." in reference to the previous owner.
They replaced the flasher for the turn signal. I'm pretty happy, except that the new part isn't exactly in spec with the old one. The hazards and old turn signals are very slow (never seen a car flash slower), and the new turn signals are average speed. Not that "strobe" kinda effect that some cheap cars have, but I miss the old slow calm pace. Where they lit up, stayed lit, then turned off. Now they turn off as soon as they light up. The only other issue is that the right one takes a second or two to light up once I push the stalk. Whatever.
As for the heat, I'm not exactly sure what they did. My understanding is that the something having to do with vacuum was shot, and it would be expensive to fix. Unfourtunately, it was explained to my mother, so I didn't hear it straight from the guy who did it. Basically, instead of being able to select between Off (nothing), A/C (cold air from top vents), Vents (ambient air from top vents), Heater (ambient air from bottom vents), and Defrost (ambient air from windshield vents), he bypassed it so that I now have Off (nothing), A/C (hot air from top vents), Vents (hot air from top vents), Heater (hot air from bottom vents), and Defrost (hot air from windshield vents)
So, now I get heat, I can select whether I want top or bottom vents, but I lost my vents and my A/C. However, it is reversible, so I'll be able to take it back in the spring and get my A/C back, at the cost of losing my heat.