I remove and store in the cabin my cushions when not being used. They will last a lot longer out of the sun. If you have bolsters, clean with boat soap and apply 303 aerospace protectant to protect the UV coating. The bolsters will last longer. If you have stains on the bolsters, try acetone. Do not use a Magic Eraser.
If you have fresh water option, flush the tank by putting the hose into the fill and running the water while the fill overflows. That helps flush the muck from the tank. Adding 1/2 oz of bleach to a tank of water will slow down algae growth. Find and clean the fresh water filter. It may be attached to the pump.
In addition to all of the standard maintenance tasks, make sure you know where ALL the motor and steering grease fittings are especially the one on the motor mid section. Grease at least once a season.
Make sure that the drain tubes from the rode locker and the fuel tank compartment allow water to run back to the bilge. The rode locker may not drain unless the bow is tilted up.
Clean and lube with a bit of lithium grease the access plate flanges and seals.
Grady recommends that the fuel tank be rinsed once in a while. Use the mid access plate opening to flush the tank. Open rear and motor well plates also to help air things out. This is also a good way to test the automatic bilge pump. Using the manual bilge option will drain more water than the auto. On that boat the bilge should remain pretty dry and you should rarely see the bilge pump working.
I use Woody wax on my deck and on the stainless. It works quite well when applied as directed.
I apply a water proofing liquid to my soft top and helm cover. I now use StarBrite and it is less expensive than other treatments. It holds up a long time.
Make sure you open and close the sea cocks every now and then to keep them from freezing up. I do not turn mine off when docked although Grady recommends that you do so. They are a pain to get to and operate unless you have the extension rods.
Flush your motor after every outing. EVERY one.
If you have the live well option, run it every now and then even if you don't need to use it. Note that both mid lockers will stay damp so don't store anything that doesn't like water
Motor trim makes a big difference on bow steer which can be fairly pronounced on 208s. You will learn over time what trim works best. Trim tabs will make a lot of difference also.
Good luck. Safe boating