I love to use this to keep track of my kiddos' weekly attendance. I deliver itinerant speech therapy services, with the majority of my kids receiving services 1x a week. At the top, I write in the "Week Of" (Jan 6...Jan 13...Jan 20...etc), list my students' names along the left. I wrote in a key at the bottom as follows:
C=Cancelled due to School Event/Snow Day
You could obviously create your key to suit your needs/caseload. I use this frequently to track attendance. It has been a great tool to have/look back on when progress report time comes around!