Check this video out for a few core warm up exercises that are great for stabilizing from your head to your toes.
A couple QUICK exercises you can do daily to promote spine health and reduce neck/shoulder/back/hip/knee pain, especially from sitting at a desk all day.
After learning how to control your pelvic neutral (as shown in video below), practice your abdominal bracing with diaphragmatic breathing. This will help with every lift/action you perform, whether your squatting 400 lbs. or lifting up a grocery bag.
Here is the first step to learning how to control your core and help eliminate low back pain.