Ham Frequency Guide

Last week while trying out different modes on HF, I mentioned the ARRL's Considerate Operator's Frequency Guide to a friend.  It goes way beyond the FCC-allocated band plan, in that it suggests – merely suggests, not regulates – agreed-upon frequencies within the bands for calling frequencies, QRP operations, DX windows, slow-scan TV and the like.  It's brief, just over half a page.  For future reference, here is a link to the guide.  For the truly perplexed, here's the full band allocation plan in several formats, both in full color or in B&W photocopy-iable.