I'm officially switching to Mac.

Be gentle, First post :) After years of deliberation, I decided to go ahead and buy my first Mac. (A Macbook Pro with Retina display.) What i want to know is... Is there anything that i should know when switching from PC to OSX? Are there any tips that i should know about? What do you love about yours? Thanks in advance. Lucas. -Small Update-Thanks for all your replies, I'm learning a lot!Some things I forgot to mention..I primarily read various news feeds in the Browser (The Verge!) I already own an iPhone 4S and a new iPad (3rd gen.)I also do Photography and so am wondering if Aperture is Recommended?And lastly, I've started using Pocket a lot recently so I'm glad its now available for Mac!Thanks again!Lucas