Some simple things that can instantly improve your life
Fixed sleeping schedule
A fixed sleeping schedule helps prevent tiredness throughout the time you're awake. When you establish a regular sleep pattern, your circadian rhythm operates at its peak which ensures timely release of vital hormones among many things.
Morning cleaning
Cleaning your place before going to work in the morning massively improves your productivity and fills you with a positive vibe and also a little sense of achievement. It also gives you a little exercise.
Green foods
Green foods have powerful antioxidants that protect the body from harmful toxins by neutralizing them. They contain vital nutrients that help protect the immune system. Green foods also help in alkalizing our bodies and thereby maintaining our body's pH at a healthy and stable level.
Warm water
Warm water is often considered as one of nature's most powerful home remedy. Drinking warm water helps in digestion because it helps breakdown food faster than usual. Heat from the warm water helps increase blood flow and therefore has a calming and soothing effect on our abdominal muscles which in turn helps in providing relief from stomach cramps and muscle spasms. Warm water also increases our metabolism rates and helps burn excess calories which would otherwise lead to weight gain. Warm water is also known to halt premature ageing because it helps flush out excess toxins from the body.
Relaxed attitude
Having a relaxed attitude in life is very important as it cut outs the negatives from our lives. When you're relaxed in life, the chances of you deviating from the path towards your goals, both in personal and professional life, are substantially reduced. A relaxed mind introduces you to one of the eternal truths of life that happiness is almost always found inside and never outside.

Last point is the tough one but alot fun :D :P
Haha I'm sure it's easier said than done. People who are naturally blessed with a relaxed mind or people who can bring their minds to a relaxed state as and when required are often the most successful and also usually the happiest.
hmmmm......I know a few, including me :P
Wow you're among the lucky few then. :D
yeah...I believe that :D