dixie cups or solo cups work great. I now use portioning souffle cups from the restaurant I work at which have lids (sometimes called ramicans (sp?)). If you don't work at a place that uses these ask your favorite waitress at a restaurant you frequent, they're cheap as dirt and work like a dream.
Drinking - Amarillo Wheat, Green Tea Ale, Zythos Ale, BM' Red Hook ESB Clone, SMaSH Golden Promise and Cascade IPA, Jalapeno/Cilantro IPA
Aging - Oaked Vanilla Java Porter, The Great Pumpkin Ale, Mosaic IPA, Black Eye Rye PA,
Fermenting - George Washington's Small Beer, American Barleywine, American Amber Rye