Been going to OC for 30+ years now.
Ocean City not to miss things to do.
Here's our list:
Beach time (we stay for 8 hour stretches

)under the umbrella with my ol'lady beach hat, primo beach chair and good book
Hit the boardwalk 2 or 3x's to people watch, play at Sportsland, get Dolly's fudge or popcorn, eat the BIG bucket of Thrashers drenched in vinegar, walk in ENTIRE boardwalk at dusk, check out the 'Jesus' creations infront of the Plim Plaza and ride bikes one morning too. We used to do Trimpers rides when the kid's were younger.
Mini Golf
Ice Cream at Dumser's
Outlets in DE
We don't go out for the Tourist Food anymore. lot's of fried stuff and drenched in butter. So no Phillips or Bonfire.
We do occasionally go to the following:
Dirty Harry's for breakfast
Bayside Skillet for brunch
Nantucket's or Mancini's for a nice dinner.
OH I almost forgot Bull on the Beach has a good happy hour. Went there for over a decade for it until they told us we couldn't sit in the bar area with the kid's. (No we weren't sitting them on a barstool

) We used to sit at the tables in the bar area.

So now we just do our own happy hour at our roof top pool overlooking bayside and the sunset.
We NEVER pay for parking. We always manage to find street parking in the little nooks and crannies.