Do not, wherever possible, allow any body part (particularly your head), to make contact with any corner, sharp object or tough surface if said body part is moving with any speed or force.
Let me elaborate.
If you are crawling speedily across your bedroom carpet toward the exit, keep your eyes fixed firmly on your destination, rather than becoming distracted by the hypnotic movement of your swinging arms. This should ensure you avoid driving the top of your head into the ajar door edge.
If you are hurtling across a laminate floor in your walker, be sure to ease your speed a little as you hit walls/chairs/cupboards, rather than slamming into them full throttle. Fingers crossed this will avoid snapping your spine in half as you fold in two about the tray table.
If you are busying yourself amiably with some plastic/wooden blocks or small toys, always stay focused on remaining upright, particularly if you choose to insert them into your mouth. Heeding this advice should permit you not to find yourself with the chosen object wedged half way down your oesophagus.
If you decide to throw a wobbler while having your nappy changed, endeavour to keep the padded, cushioned changing mat under your flailing limbs. Hopefully this will guarantee that you do not drive your heels into the cold, unforgiving, wooden surface beneath it.
If you embark upon a light hearted game of hide and seek with your Mother through the spindles of the stair bannister, make it your business to not allow yourself to become over excited. All being well, you should swerve the loitering possibility of lurching your forehead painfully into one of the carved edges of the aforementioned balustrades.
Pearls of wisdom, I'm sure you'll agree.