Now that I'm stuck at 2Gb max on my data plan, I'm looking at ways to cut back on what I don't need in the way of data useage. Here's what I've done, and I'm interested in any other suggestions along these lines: weather - I've set this up so that it does not auto update. If I want to know anything, I open the app and tell it to update. Same thing with Weatherbug. facebook - Again, no auto update. I will refresh when I want to know what's new. mail - all accounts are set to update once a day, both peak and off times. It appears an update is done if I open an account anyway. twitter - auto refresh is set to off. I'll refresh when I want to know what's new. I keep wifi, bluetooth, and gps turned off via the widget until I actually need them. This is for saving on power, not bandwidth, of course. In "accounts & sync" I've turned off facebook, flickr, google, last.fm, news, stocks, twitter, and weather under "sync". I've also turned off auto-sync. However, I do have "background data" turned on. What apps/functions need this to be on? Can I turn it off? Under "location" I've turned off Use Wireless Networks preferring to depend on GPS for location/mapping purposes. Phone Finder is left on, does that use GPS or any of my limited data? Some questions: under mobile network settings I see "enable always-on mobile data." not sure what this means? Can I turn off "background data" under "sync" safely, and if I do, what will I miss out on? Thanks to anyone for assistance. I do stream last.fm and would like to save my bandwidth for that when I need it.