always puts a big orange in the toe (DH's tradition..) and that takes up a lot of space.
In our house Santa only brings for kids.. so kids are responsible for filling the adult's stockings. (Mine are 7/9 but have been doing this for years.) We buy some small candies for them to put in, but basically they stuff it with things they make.. pictures mostly, or they will write a story, or make some small crafts. They come up with all kinds of cute ideas, and it takes the pressure off us for something. Maybe you can start that tradition? Your older two would probably be into it. This way you can make sure yours gets done too.
For my kids I buy things all year when the $Spot is 25cents, and I use them for stockings and Easter basket. Hasbro also had some cute Potato Head pieces (We collect the Disney sets) and they will both be getting some of those.. oh yes.. and a few Disney pins of course.