Any suggestions on how to deal with sticking interior wood doors? They all seem to have swollen this summer with the heat/humidity. My thoughts are: sand down the edges with a belt sander and repaint the edges. Not sure how good I'd be with a planer. Should I do something with the hinges instead?

We just bought our house in mid-February. It's 233 years old and has great character. We're very excited about all our home improvment projects.