I'm sure this post has been made 100 times, but I'm having this issue. I very seldom use Wifi. For some reason, I notice via the widget that wifi is turned on. I try to shut it off, but wifi turns right back on. It's like something is trying to utilize it.
However, I've looked through every widget I use (which are few) and I can't find a setting or anything that would be forcing wifi to be turned on.
In Settings, Wifi is turned on. I'll shut it off there too, low and behold, it'll be back on in minutes...
I even have Locale set to wifi=off.