Thanks for the tip!
Dad, We're redoing our downstairs bathroom and living room. Yesterday Alex, Ella and I tore down wall paper and today I began prepping the walls for painting. The bathroom walls were in pretty bad shape, and the corners needed re-taping . I still have to sand and put another layer of joint compound on, but it's going pretty well so far. Mainly that's because I remember what you told me a while back - to put down one side at a time. That really helps . . . so thanks for the advice. I'll post some pictures when it's all done.