Hi Christopher,
Your trip is so soon. You must be getting very excited!
Since you have more days at Walt Disney World than you have theme park tickets for, I suggest that you do not visit a theme park your first day at Walt Disney World. When you arrive at
Disney's Saratoga Springs Resort & Spa on the afternoon of your first day, you can spend some time settling in to your villa and then exploring the resort. You can familiarize yourself with the resort and have a table service dinner at
The Turf Club Bar & Grill at the resort.
After this, I would suggest that you select one day per theme park, assuming that your family is interested in all four theme parks. You will be able to take advantage of
Extra Magic Hours, where one Disney theme park is open early or late for Walt Disney World resort hotel guests. I suggest that you take a look at the
daily theme park hours for Walt Disney World and decide which day you would like to visit each theme park. You will have one extra full day for which you do not have theme park tickets. I would suggest that you take this day as one of the days in the middle or later in your trip. On that day, your family can spend time at your resort. You can also take a boat right from your resort to the
Downtown Disney Area shopping and entertainment district, which requires no admission.
I hope that these thoughts are helpful for you, Christopher. I hope that your vacation is truly magical!