Here is a simple summary: Lift. Move. Regularly.
This gives me motivation every time:
This is the app I use to get into running again, the C25K app by Zen Labs. Unlike other apps, all runs are free and you don't not suddenly have to upgrade to the paid version to continue with the program.
I can also recommend the original Brazilian Butt workout by Beachbody. It is fun, varied, whole body (includes arms, back, abs and thighs), has cardio sections and is accompanied with a 60 day plan. And it works.
Here is a hilarious video:
Here are a few other selections:
Some fun zumba with the fitnessista:
Stability ball and ab exercises:
To unlock after a long day at the computer