Proofreading aloud

Last night I printed off a couple of chapters of the book I'm writing, and I read some sections aloud to my husband to get feedback on the tone and flow. I was surprised just how many mistakes jumped out at me as I read, and it struck me that reading a hard copy of text aloud (slowly) really is the best way to proofread. The problem is, it's very time consuming, and a little dull for anyone who happens to be listening! I don't proofread this way for clients, but I think for your own writing - where you're prone to blind spots because you're too close to the material - proofreading aloud is a very good idea.