Closely predict your energy costs by comparing your daily energy usage to your energy usage last month and even this time one or two years ago! Wattvision's date-picker bar at the top of your "Daily History" page now makes it incredibly easy. Just choose the date you want to examine and the date you want to compare it to, then submit!
In case you haven't, don't forget to check out the other tabs in the left-hand menu. View your energy usage by month, get your raw data, opt to receive alerts for energy spikes, or subscribe to weekly updates on your energy costs.