Am I forgetting anything?

A couple weeks ago I bought my first Tacoma, its a 2015 TRD Off Road with 32,000 miles. Previous owner said the only thing he ever did to it was have the dealership change the oil every 4.5-5k miles. So I decided I'm going to do every maintenance item I can think of to make sure this truck lasts. I'll list everything I've done so far, please look it over and let me know if you can think of anything I might be forgetting.

Changed Engine Oil + Filter
Changed Transfer, Rear, & Front diff oils
Greased all 5 zerk fittings on the drive shaft
Did the UNI filter mod on the secondary air pump
Cleaned MAF and throttle body with CRC cleaners
Replaced all 6 spark plugs
Replaced cabin and engine air filters
Had the dealership do the free corrosion prevention (*I live in Ohio which uses salt in winter so my truck was eligible for this from Toyota)

That was just about everything I could think of to do at 32k miles, I'll start thinking about replacing the transmission fluid sometime between 50k-60k miles. I'm thinking because I live in a state that uses salt/brime in the winter I should be using a product like fluid film. The corrosion prevention the dealership did only really put CRC on specific seams on the inner parts of the frame. The vast majority of the trucks underside is still not protected.

Can you guys think of anything else I should do to make this truck go the distance? Thanks in advance for your time.

 

Congrats on the purchase. Your maintenance list looks very complete.