Lessons on writing queries

I've written queries and cover letters before, but I think this most recent batch was my first "big" query mailing, both in terms of the assignment I'm querying for and the number of queries I sent out. As a result, I learned a lot about querying in the last 24 hours, and remembered a lot of tips I've read in the past. Like any practical and economical writer, I put these lessons to use, adding a post about writing query letters to the How-To Blog I contribute to. I hope this information proves useful for any other writers or hopefuls who stumble across my site.