I have one or two pics of the boys
My top tips would be:
Keep the camera out, that way when they're doing something cute/funny you have half a chance to capture it.
Take pics in natural light, sunny days are best. Pics taken with flash mainly have alien eyes (well mine do anyway!) and they never turn out as good.
Take multiple pics of the same 'scene', digital is free so take lots of pics in the same position - some are bound to be better than the others. My problem is deleting the bad ones, hence why I have rather too many