I've done a few morning pages - not regularly, and not in the morning, but freewriting for 3 pages and yes, I'd say it was a valuable exercise. My head is in full monkey mode at the moment, whirling and chattering, so unless it's siphoned off, there is no clear pool for a story to well up from. Blogs are good, but necessarily censored - the value of morning pages is that nobody sees them and they are not for re-reading, so you simply let blow.
I've been thinking about voice these last few days - once again I've lost my voice. I wonder if the world is mirroring my writing? Have decided to take action. Tomorrow I'm seeing a voice coach. Some books from the library confirmed that technique and exercise affect how your voice performs, and I certainly can't teach with a sore or missing voice. It will be interesting to see if the two improve together.