Hi, There are many different ways that you can use, and it will depend on the person and their lifestyle, which on will work.
@ Go to bed earlier, if you do this you may find you will work up earlier
@ Do not drink caffeine drinks late on in evening, by doing this you will sleep better
@ Set your alarm clock to go off an hour earlier
@ Have a friend phone you to get you up and then pick you up for work, and if you are not there waiting ask them to drive away
@ Make a note and pin it up in the bathroom or bedroom and say on it, if I am late for work, I will loose my job, maybe the fear of loosing a job will make you be there on time
Hope this helps