First time Windows Phone user...just got a Nokia Lumia 521 for $130 contract free

It seems like a great entry level device that offers a lot for the price you pay for it. I have been a life long iOS user and this is my first venture into Windows Phone 8 territory. I figured you can't really go wrong with spending $130 for an non-contract device that seems to a pretty decent job.

What are some of the first things I can do on this phone and Windows Phone 8 in general to improve my experience? Any and all tips are welcome.

Also, I mainly bought this phone for the HERE Maps/Navigation offline capability. Any body have any experience using it for search/navigation in off-line mode? Does it work well?