Yes it is possible to save your remaining bits of money you might have once you make it into Disneyland but firstly you will need to prepare.
For day visitors:
prepare sandwiches, snacks and beverages at home. Put some ice in a small cooler you can store these outside the park near the picnick area lockers. With a small daypack to carry various snacking items and fruits/waters for carting during the day.
Savings= significant. Considering feeding a family of four in Disneyland or from a Disney property eatery will cost at least 14 dollars a person, your saving at least 50 dollars per meal if not much more!!!!
While staying at hotels: you can stock up on provisions from Costco, store these In a large cooler in your room/base. Have backpack to bring some snacks/small waters with you to to bring in the park.
Savings=significant. Considering apples cost over 2 dollars each in Disneyland and waters are significantly more then that you will save a Large chunk of change.
Souveniers- well in the old days there were actually items kinds wanted that were unique to the park, that is no longer a concern you can find these souveniers pretty much anywhere and much cheaper. Take a picture of the item and search for it on line.
if you forgot to bring food in a locker or something happened have no fear, mcdonalds, mimi's and Ihop are directly across the street from the shuttle dropoff parking! Open late and very affordable you will still save a good amount of money and time going this route!! From mainstreet walk towards he exit and make a left those eateries are directly across the street.
I am sure there are many other ways to save lots of money once your at Disneyland what are your secrets?