sab1

Plus...
Door Edging
bed mat
weather deflectors (hood and door, color: smoke plastic)
Door Molding (however I always park away from everybody)
dash mat
tailgate F150 lettering
door sill plates
Integrated Trailer Brake Controller (dealer to install)

Window tint, bed racks, fender flares, and power rear window/split rear window will have to wait due to cost.
There's also a bunch of sticky 3M chrome tape you can get but I'm told unless you take care of your trucks appearance almost daily, exterior chrome tape is waste of money and will eventually looks awful.
Check out the ford accessory web site...

schmenke

Keep in mind that mud flaps/guards on trucks are mandatory in some states/provinces. That was the first "accessory" that I installed, as they are not necessarily provided by the dealers.

RTice

Which ones did you install?
I do a lot of freeway driving, so my intended use would be to keep my tires from kicking rocks against my lower panels...and it would also hopefully minimize road grime on same panels.

schmenke

WeatherTech "no-drill" mud flaps. Have had them on my truck for a few years now with no issues at all.