Coke as soon as I walk in the door. I know it's not good for me but I can't live without it. I go through withdrawals on the days I don't. I get home, put my stuff in the office and either go to the kitchen or bedroom and boom: Coke time. I can't explain the rush of excitement, calm and nostalgia it induces all at once.
Frank the Tank explains it best.
http://i.qkme.me/3rlnq9.jpg
I find it goes good with Cheez-its, Cheddar Pringles...pretty much anything with fake cheese sprinkled on. If you want to take in up to another level, regular Lay's & Hellava Good French Onion Dip. If you want to completely blow your socks off, nothing beats an old fashioned Hershey's milk chocolate bar, the BIG kind where you can break off like 20 rectangles. Hershey & a nice cold Coca-Cola. Nothing better.
That's how I wind down after work.