From Zen Habits (a really interesting site) comes an article on how to simplify your life.  Author Leo Babauta says:

there are really only two steps to simplifying:

  1. Identify what’s most important to you.
  2. Eliminate everything else.

He then goes on to list 72 ideas that we can use to simplify our lives, recommending that people focus on the suggestions that apply to them and only try to implement one change at a time.

Streamline your life. Many times we live with unplanned, complex systems in our lives because we haven’t given them much thought. Instead, focus on one system at a time (your laundry system, your errands system, your paperwork system, your email system, etc.) and try to make it simplified, efficient, and written. Then stick to it.

Make a Most Important Tasks (MITs) list each day. Set just 3 very important things you want to accomplish each day. Don’t start with a long list of things you probably won’t get done by the end of the day. A simple list of 3 things, ones that would make you feel like you accomplished something.

Develop equanimity. If every little thing that happens to you sends you into anger or stress, your life might never be simple. Learn to detach yourself, and be more at peace.

Just three of the suggestions that I found useful!  Read the article 72 Ideas to Simplify Your Life and find the ideas that appeal to you.