You get to a point where it's embarrassing to read them again. So you look for something to tide you over until a decent interval has passed.

• CS Forester's Horatio Hornblower series, of course.
• I'm now reading naominovik's delightful Temeraire series. I usually put books with dragons on the covers back on the shelf. I'm glad I didn't, with this one. (BTW, I love dragons. It's just that they're not often very interesting characters in fantasy.)
  

Any other suggestions?