Dealer add ons?

Based on some great feedback from this group, I've connected with a few local dealers on the purchase of a new Pilot I'll likely be making in the coming months. I've got an "out the door" price from a dealer that comes with a reasonable dealer processing fee and a nicely discounted price. My plan is when I'm 100% ready to go I'll go to that dealer (they want me to come in now but I have no plans to do that until I'm ready) with the plan to negotiate even more and be willing to sign that day. One thing I haven't put much thought into is any dealer add ons that they'll try to sell me like extended warranty. Are there any dealer add ons that I should consider purchasing?