Hi Jamison: Good idea. These days, with so much dependence on electronic or technology to facilitate classes, our dependence can give false assurance that all will go well. Therefore, I think the value of have good back up plans are relevant. For me, having something I can initiate on short notice, is pertinent to the general course of study, and something students will feel is beneficial, where we're not just wasting their time. Over the years, some of my back up plans have been included in the regular curriculum (as I stumbled on to some really good material). Regards, Barry