Hello. Our family took a long time to decide whether or not to include Universal this trip. It will be our 1st time because my DH really loves staying safely inside WDW. We have voted that he stay at the resort with my DMom and the teens, my Dad and I go visit WWHP and IOA. We will rent a car and use it to do a store stop as well. Unfortunately, now our trip is right around the corner and I have not pre-purchased tickets. 
Has anyone out there purchased the day of their visit and if so, can you tell me how this is done? The fastest and most convenient way, if there is one, would be appreciated.

Has anyone out there purchased the day of their visit and if so, can you tell me how this is done? The fastest and most convenient way, if there is one, would be appreciated.
