If you have trouble getting into an exercise routine, try this. Join a gym, and go every single day and do the same exact thing every time. For a lot of people, doing something every day is a lot easier than coming up with a schedule that changes depending on the day, especially if one of the changes is 'do nothing on Sunday' (recipe for doing nothing on Monday too, and then forgetting about the whole thing).

What I do is this. I wake up to my alarm, and then I immediately go eat a light breakfast, and then head to the gym. Once at the gym I stretch for like 5 mins, run on the treadmill for 5-10 mins, do a couple sets of military press or something, and then go to the sauna. Hits all the major pieces. Flexibility, cardio, lymph movement, resistance training, sweating, etc. Once I finish at the sauna, I take a shower, put on fresh clothes, and then start my day. I essentially use the gym as my 'morning routine'. I'm not ready for anything until I put on fresh clothes after my (quick) workout.