but I have to say it.
I was a full time SAHM with DS1 until he started school. Started working part-time (30hrs a week) when DS2 was 2 (so he's had 2yrs of me fulltime).
Something struck me the other morning when I got back from work and DS2 was chattering away. I've actually noticed more of his 'milestones' since I started work than I did before.
With DS1 I was with him all the time, and DS2 most of the time until he was 2 ( left him at home with DH to do my church stuff). However with DS1 I realised today I didn't really pick-up on how he was changing and growing up. DH used to see him at the weekends and say "wow he's doing x,y,z now" and my response would be something along the lines of "oh he's be doing that for a while now"......but actually didn't really know how long he'd been doing it.
I suppose I was the same with DS2 until he was 2 as I was at home all day.
But now I can really see how he's changing, things that "just happened" are more obvious now and I really think it's opened my eyes a bit more 
Don't get me wrong, I loved being at home fulltime , but I've actually realised now, properly, that working when your children isn't such a bad thing, all too easy to take their progress for granted (or not even notice it as it all melds together - especially at DS2's age) instead of appreciating.
Don't know if this makes sense but it's been bugging me 