Be focussed and doing the work - how to get it together

Some days i just cannot get my act together. Other days planning and organizing come much more easily. I have worked out that i can make things easier for myself if I do a few things. So here is my list of the top 5 things that help me get and stay focussed.

1. Eat well - I find if i eat food that is rubbish, I feel rubbish. I feel sluggish, tired and unable to focus. On the other hand, if I eat fresh, clean food, my brain thanks me by being clear and focussed.
2. Exercise - When I have done some excersize everything seems brighter, easier and more do-able than before. This year I made a commitment to myself to excersize more and those days I achieve more in every area.
3. Drink plenty of water - Sometimes our lack of focus is because we are dehydrated. The days when I don't drink enough water, I mentally drift off all over the place. I think the rule is 30mls of water for every kilo that you weigh. That means if you weigh 70kgs, you should be drinking a little over two litres per day.
4. Debate - If there is no-one else around and you are trying to plan and organise something, talk it out with yourself. Debate the pros and cons of decisions and changes that you want to make. You can do this verbally or on paper.
5. Know when to down tools - there may be days when the most productive thing you can do is to do nothing. This might be a bit harder if you work for someone else but keep in mind the leading cause of workplace absences is stress. If you are trying to push yourself and it just is not working, take yourself to a different environment or do something else. Your brain will still be working on the solution even while you are not focussing on it.

I would love to hear your tips for staying focused when you don't feel like it.