Quick post - wanted - input on best practices for sample processing & storage for microbiome studies

Over at microBEnet I have a post that may be of interest to many readers: Best practices for sample processing and storage prior to microbiome DNA analysis freeze? buffer? process? | microBEnet: the microbiology of the Built Environment network.  Basically I am hoping to get a discussion going about the ins and outs of sample processing and storage for microbiome studies.  We have been having lots of discussions in my lab and with collaborators about this and thought it would be better to just get everyone involved.