One piece of advice: If you find yourself saying things like "At my old job..." just shut your mouth. I mean this with the utmost respect that phrases like that are the best way to alienate your new co-workers. Listen and learn to how they do things, then over time start improving things if you see opportunities. If they want to know how you've done it in the past, they will ask. Otherwise, you just look like a know-it-all who can't adapt.