6. Make room for exercise
This is reason in itself to de-clutter your house. Most people I know say they would do a little morning yoga or some push-ups and crunches, if only they had room to do it. Make room. I live in a studio apartment - not a large space - but I have plenty of room to spread out my yoga mat because I decided to omit the ubiquitous coffee table from my floor plan. Evaluate which pieces of furniture are absolutely necessary, and give the others away. If you must, must have a large coffee table in your living space, put it on wheels so that you can push it out of the way.