Contributions to http://the-pencil-box.wikispaces.com/ are licensed under a Creative Commons Attribution Share-Alike 3.0 License.
Set up a sub folder that includes a class list, a seating chart, and a short list of students you can trust. Put these materials in a highly visible area in the event you are not able to come in to set up your sub plans. Also include sets of assignments for the sub so they can cover a day or two without you coming in.