Natural Sleep Help

I often have trouble sleeping - my body gets tired but my mind won't shut off. Here are a couple things I use to help me fall asleep:

• I take a hot shower before getting into bed.
• I use lavender aromatherapy oil.
• I drink chamomile tea.
• I listen to calming music.
• I meditate.
  

I'm always looking for new suggestions. Counting sheep just doesn't do it for me. Someone suggested I try visualizing mowing the lawn. I tried. I failed. The next day I couldn't get the image of the lawnmower mowing in a square out of my head. What helps you sleep?