[whpalmer4]

One way you could have some help in getting your focus shifted to the right context would be to use iCal's alarm functionality. One of the options is to have iCal cause a file to be opened. Make a perspective that shows only the stuff you care about in Home:Kids Time, for example, then set up repeating events in iCal that go off at the start of Kids Time and open that perspective's file, which you can find in the Application Support/OmniFocus/Perspectives directory in your home directory. You'll get a new OmniFocus window set to that perspective when the target time rolls around.