We used to just hang out at the resort and DTD/DS on arrival day because I was one of those people who didn't want to waste a full day ticket for just a few hours in a park. When I realized that since we already had 5-day tickets, that it was only going to cost us $12/person (12 years ago) to add an extra day to our tickets, it was a no brainer. Even if we were only going to spend 2 hours at a park, it was worth the $12. We drive to Disney and usually arrive by 10 or 11 a.m. so we unload the car and do a little unpacking (our rooms have always been ready when we arrived) and have a leisurely lunch at the resort. Then we head to EP for some casual touring -- usually using our 3 FPs (who knows if those will ever return) and having dinner at Sunshine Seasons. We head back to the resort by about 7:00-8:00 to do some more unpacking, maybe a quick swim, and then get a good night's sleep to hit the ground running in the morning. We find going to a park for a few hours on arrival day is a nice way to ease into our vacation.