Many of our parents are getting slammed with notification emails on a daily basis. They want to know when an assignment is added, or when a practice is added or changed, but when you turn on several different notifications and have multiple kids in the school, you have the potential to receive 20+ emails a day.
I would like our parents to have an option in the notifications section to produce a daily, summary email instead of separate emails for each notification. This summary could list all the items the parent wants to receive notifications about in a single email. I envision it being broken down into sections where the notifications would be grouped by category: Academics, Athletics, Activities, etc. I would also want it to be clear which child that notification was for; you could separate the notifications by student, then by category, or you could use a different color for each student's notifications then just list them all under the categories.
There are some things parents may still want to receive immediately, but I think many/most parents would opt to receive a daily summary for most items if it were an option.
Related Idea: Option for Daily Digest Email Notifications
Some improved functionality in notifications would be huge, and I love the daily digest option. A weekly digest might even let many schools get out of the business of sending massive weekly pushpages.