So I'm aware of the feature...just unsure of how to actually start using it. I read a while ago that the phone eventually "learns" where you go at what times and starts offering ETAs in notification center. Is this true? I've gone from my house to campus for the last 3 days at the same time and it hasn't picked up on it yet. OR do I actually have to get directions to the places I go to frequently for it to notice a trend? I couldn't really find any documentation on this so any information is appreciated!