Performing wudhu slowly and contemplating on the words in...
Performing wudhu slowly and contemplating on the words in the invocation recommended during every wash would help you a great deal to think about your life, death and the Creator whom you will be standing in front of soon. This way, you employ wudhu as a strategy to re-organize thoughts and prepare for Prayer. There should be no interval of talking and discussing worldly matters between the performance of wudhu and your Prayer. If there is an interval, you ought to recite invocations.
This way the link of concentration is established between Wudhu and Prayer. True, the more time you engage in meditation and the conception of having only one thought before your Prayer, the more chances you have to say your Prayer without any distraction.
اللهُمَّ بَيِّضْ وَجهي يَومَ تَسْوَدُّ فيه الوجُوهُ، وَلا تُسوِّدْ وَجهي يَوم تَبيَضُّ فيه الوجُوهَُ At the time of washing the face, you ask Allah (SWT) to brighten your face on that Day when He will disgrace and darken the faces of a great number of people.
اللّهُمَّ أعطِني كِتابي بيَميني، والخُلْدَ في الجِنانِ بِيساري، وحاسِبْني حِساباً يَسيراً At the time of washing the right forearm, you plead to Allah (SWT) to place the scroll of your deeds in your right hand and the certificate of permanency in Paradise in your left hand, and that He should render your accounts leniently.