I guess it depends on what's causing the writers block. I tend to have a harder time focusing if my house is not clean or if I have obligations coming up that need my attention. Sometimes if I've worked too much on a particular project, I will move to another writing project. (I have several in the works). If there are no distractions and I'm still having a hard time, then I set my writing aside and go for a walk, experience nature, spend time with my kids and go back to my love of reading and read books from other authors. Those things are where I drew my inspiration to write in the first place.