Hybrid n00b here! just bought a.....

2007 Prius Package #6.... car is white with beige leather, 60k miles. i've owned this car for a week now and loving it!
My other car is a 2002 BMW M3 so it's a big change. i'm an auto enthusiast and would love to know any and everything about this car...
i have a few questions right off the bat for you all:
any tips of where i should begin or what i should be looking for in a car with this age and miles?
first thing i did mod wise was get 15% llumar tints all around now i need to get all season rubber mats and mud flaps... any other common mods out there?
btw, after my 60k service, the car's maintenance sign was reset, but the computer maintenance is all at zero... is that for personal use? because the toyota service guy told me that they dont' use it... please help
thanks!

 

thx, i'm loving the car already! but my wife loves it too so i'm getting to drive it much... being more of a passenger lol