All the above are great!!!
What do you like to do? I find that if a person likes to dance, walk, or you name it, that it will be easier to get out and do it.
Find a friend. There is nothing like peer pressure to get you moving on the days you want to stay put.
As above, schedule it into your day. EARLIER is better If you make it part of your wake up routine, you will start to miss it.
reward yourself for a perfect week of working out... yes even a bad cheat would make a great reward at first if it gets you moving the entire week.
Take a day off each week.
Start small. You will see in various posts where I encourage folks to move it up to an hour, start with 2-3 weeks of 15 minute workouts --- just understand that these will not produce much more than the beginning of a habit