Non-alco - cold: Sioux City rootbeer, warm: black coffee or the occasional cappuccino
Beer - Grain Belt or Pabst Blue Ribbon
Spirit - to quote one of my favorite TV shows (How I Met Your Mother), I like a Scotch that's old enough to order it's own Scotch. If I can afford it, Johnny Walker Blue, if not I'll go for Jameson of any kind or Crown Black.
Iowamike - Not sure what part of Iowa you're from, but if you get a chance, head up towards the Twin Cities and look for Grain Belt. It's similar to Yuengling, I'm lead to believe. My buddy from PA brought me back a bottle of Yuengling last month, but my (expletive) roommate drank it before I could get to it.