Fitness: Push ups
You might love them, or you might hate them, but push-ups are super popular for good reason! They are a very effective way to hit several muscle groups all in one motion. I've met countless patients/clients who are intimidated to do push-ups because they assume they need to do standard ones. Not true! You should choose whichever type allows you to challenge yourself while maintaining the best form (meaning a nice straight spine!).
Try to sneak in push-ups in creative places- against your bedroom drawer after you get dressed in the morning, against your dryer as you wait for the cycle to finish up, or even on your own tailgate as your kids play on the driveway (yes, I've done all these!).