How do you keep on track working at home?

Working at home there are hundreds of things that can distract you from actually getting any work done. Even as I type this I am being distracted by the movie that my dad is watching on the television. And then there is the knowledge that we need to get ready to go to town, and the thoughts that I should get the bills all in order for the month, the unfinished quilt I am working on, and the thoughts of wanting to work on things for the garden...

Yeah, there are a lot of things to distract someone from working when they are trying to work from home, so my question to everyone out there is; what do you do to help keep you on track and not distracted by the chaos of trying to work from home?