You can, of course, call up your favorite photographer and schedule a session, but taking your own photos can be just as fun! I recommend families take group photos at least once a year, minimum. You might not see a difference year to year, but when you start looking at the photos you'll be amazed at the little changes you notice in everyone! It's fun to document that over time.
Tip #1: Schedule your shoot around a child's birthday, anniversary or move date. Then keep taking photos around that time every year to document how your family changes and grows from year to year.
Tip #2: Grab your point-and-shoot camera (or even your smartphone!) and learn how to work the self timer. Play with poses and angles until you have the perfect shot you want to capture. Then, set the timer, get in place and let the camera do the work! OR ask a good family friend to take your photos for you - then return the favor and take theirs. Everybody wins!