I'm about to have a 5.5 yr age gap between mine. My eldest is at school, and is very excited about the prospect of a new arrival so far (as are most of her friends ..... having a girl first perhaps makes this easier ?). So I'm thinking I'll get baby-time whilst the elder is at school, and less jealousy / more help - optimistic ! I'll let you know ...
I'm in denial about school holidays when I'll have both children with me
, and I do feel almost like a first time mother again as it's been so long, but I am looking forward to doing it all again. I've had a few years of career and some sleep to refresh !
However, I think the larger age gap may get more difficult as the children get older, as they'll each be wanting to do different 'age appropriate' things, and may well be going to different schools for a period (secondary and primary) - so the logistics of that will be interesting.
So, maybe a 4 to 5 yr gap would be my ideal. Having a baby as soon as my daughter started school felt a little mean though - a bit 'one out, another in', so I waited.