I know this has been posted before, but...: I already have a dd, 15 months old, and before I start thinking of having another am wondering what the best age-gap between siblings is....More specifically, is 2 years or just over a horrifically bad gap??? Of all the grown-ups I know with siblings this age apart, NONE of them have good relationships with eachother, whereas a bigger or a smaller gap (the latter not an option for me, now!) seems to be better? Is this just a silly question anyway, surely it's the personalities which dictate the success or otherwise of the relationship, not just an age gap....