how i improve my concentration.....

to my knowledge the best way to improve concentration is to meditate regularly and do concentration exercises like deep thinking and such

Yah, that's right. Do a meditation or yoga..

For me the best way to do it is to be aware that I want to improve my concentration. Then I choose something to focus on and I do that for as long as I can. When my mind strays I just go back to that original focus and keep at it for as long as I can.

Well my friend, You are asking indirectly how to tame your mind.. Mind is alway a master of you, To become master of your mind its not easy task. There are serveral ways which can be acheived to increase the concentration level, but this comes through daily regular pracitse.
Below are few exercises...what I feel is bit difficult but can be practiced
- Initially you can practise reading an newspaper article only once and then try to memorize what u had read.
- After u have made progress in the above step, then count the number of words in the article in one run and verify later that u count is indeed correct..
- Then u can start meditating imagining what you visualize in your mind..

- Then u can start to visualize few colors which u like.. and try to view them as long as u can.

- U can observe few objects for 3 minutes without any other thoughts and visualize it by closing your eyes..

- Try to Meditate without any thoughts in your mind.. i.e a bank mind.. This is the ultimate level of attaining concentration where u have mastered your mind.

The above steps r indeed not easy.. Bit very difficult.. But the results are far better. I could feel the difference within 3 days.. I was able to handle much pressure work easily.. I was able to extend strain full job for more than 3 hrs a day..

All u need a determination and will power to increase the concentration.
Best of luck

Just add 5 minutes to your concentration or just a few lines more if you are writing something. This will work.
If you think you have to write a long passage or to read a long page, your concentration will falter because your brain gets tired.
If you ned to pay more attention to reading or writing then cut them into small bits and go step by step. You will be able to do it.
Sometimes when I am doing household chores like cleaning I cannot keep my concentrating in my work I would prefer to be near the comp at the time. So what I do is to divide my work and come and sit at the comp for sometime. I'll be able to finish it by the fixed time and I will neither get bored also. Try this method out and see what happens.