Whether you find or make a file, there are some general guidelines. All designs must:
There are many sites online where you can find files. Below are some of our favorites, but they are not the only options. You can even find a file you like and then edit it to make it your own just be sure to check the licensing of the design. (Most designs are creative commonsLINK, but always check)
Beginner / Accessible:
Intermediate
Advanced / Specialized