My challenge is that in my lab there are so many things that are 'calling' that staying focused is a serious challenge and I end up 'puttering' as my wife calls it. For pure software projects taking just enough to get your programming done to an otherwise pristine environment does wonders (I take a notebook with me camping where I am not distracted).

Hiding things also helps, things in the visual field that you have to work on or are interesting are literal distractions.