Re point 1, since I'm living a bit up north it's not bright enough outside in the morning, and my job requires me to be there by 9. So I got one of those Philips wake-up lamps, which gently fades up to a rather bright light. That helps a lot with feeling well rested when I wake up during the winter.
A key point though is to allocate enough time for sleep. My morning light won't save me if I've only had 5 hours of sleep.
Re point 3, I found the same incidentally when I tried (and managed) to lose weight. In order to cut down on calories I opted to simply skip lunch, and rather have a late breakfast. So I'd bring breakfast (two rather manly slices of >90% whole-grain bread) and eat it at around 10. Then I'd have dinner when I got home at around 5-6 pm.
This made me have a much more even energy level throughout the work day, making me significantly more productive.
A key point though is to allocate enough time for sleep. My morning light won't save me if I've only had 5 hours of sleep.
Re point 3, I found the same incidentally when I tried (and managed) to lose weight. In order to cut down on calories I opted to simply skip lunch, and rather have a late breakfast. So I'd bring breakfast (two rather manly slices of >90% whole-grain bread) and eat it at around 10. Then I'd have dinner when I got home at around 5-6 pm.
This made me have a much more even energy level throughout the work day, making me significantly more productive.