Free Software that I rely on. One per day.
Day 21:
DVD Styler
When I want to master my own DVD, with menus and easter eggs and all the other goodies, DVDStyler is my tool of choice.
It provides a grapthical front-end for DVDAuthor, and supports most of the features you'd expect to be able to create on a DVD (I think there may be a few gaps, but I haven't found them limiting).
The program does have simple default templates which makes it easy to whip up a simple DVD for your home movies, but I usually want something more complex and original, so I start from scratch.
https://sourceforge.net/projects/dvdstyler/
Also see DVDAuthor, the backend: