Great answers to the interesting question “what books have you re-read”. I’ve re-read a few of Hemmingway’s and Steinbeck’s, but I can’t think of any other than those. I reread both A Farewell to Arms last year, and The Grapes of Wrath just last year.
The Grapes of Wrath in particular stands up very well. It’s the best book I’ve ever read by an large margin. It’s almost impossibly good.