I am a budgeter even when we are at Walt Disney World. We are each allowed a specific souvenir budget and I encourage everyone to spend a few days browsing the shops before settling on their purchases. We usually take pictures of the items that we would like and attempt to remember all the important information (what shop it was found in, how much it cost, etc.).
I was recently introduced to the WDW Souvenir Spotter which is great for sticking with your budget! This app helps you keep track of all the items you are interested in purchasing in one central place. The app has you take a photo of your find, add a price, who it’s for and any other important information you need to remember. You can even share your finds on social networks and view the GPS coordinates of the item in case you forgot where it was located.
The WDW Souvenir Spotter app runs $1.99 in the iTunes store.