1- Before starting a project:
Decide what you are really going to do. (Game play, administration, fun, etc.)
Decide how you are going to do it.
Make sure you can handle that project.
2- Be sure that you are using latest versions. (MM: S, SM and API's you use.)
3- Always make a "To Do" list and a change log to keep your project organized.
4- Tell users your project's compatibilities/dependencies. (OS, mod, extensions, plugins, APIs)
5- Don't wait for a request to put screenshots. You can use
Picasa Web to organize your screenshots easily.