regular 15 minute spikes for email checking
Not if it's tethered to my laptop - lucky to get 15 seconds of quiet between checks for updates, attempts to reconnect some stale network share that probably fell with the Roman Empire, some web page reloading an advert, something somewhere forcing a browser election, some media player fishing for DLNA so that it can blurt incompatibly...my zombie detection algorithm is to look for the ones not aghast at the frittering away of their data allowance (might accidentally whack a few flash city gents this way but I can live with that)