Google Now, WiFi and Tasker

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http://androidforums.com – I'm running JellyTime on my Inspire and really loving it. Google Now is pretty cool, but the wifi thing is bugging me. I understand why GN wants wifi on all the time, but the Inspire doesn't have the best battery and I don't want to leave wifi on. I'm thinking of using Tasker to turn wifi on for 5 or 10 minutes every hour, so GN can triangulate but not kill my battery. Would this be sufficient to let Google Now gather information? Or would it not be worth it? (General)