Knock out an oil change, replace your air filter if it needs it. Replace the cabin filter - should be simple - 4th gens were stupid easy. Rotate your own tires. You should be able to do it for less than $100. Paypal me $50 gift to feel better about parting with your money,
[email protected] Wait for dealer to send you "free 21 point inspection" coupon or similar. They'll check the same stuff as they would in the service. Don't get me wrong - if I had the money, I'd have a dealer do everything to my truck but I don't so I do it all myself.