Odyssey is an application designed to force you to focus on writing. It is a simple RichText editor which allows you to configure a time or a word-count goal, and allows you to lock yourself out of any other application until the goal is complete. Firstly select a goal type (how long you want to write for, or how many words you want to write), then configure the various options. Note that if you enable the 'Prevent exiting' checkbox, Odyssey won't allow you to use any other programs on your PC until your chosen goal has been reached.