It doesn't go away - in fact my memory is worse than ever now with 2 kids. I used to be super organised, paid bills always on time etc. Now i have to rely on scribbles on my wall calendar and even then i might still forget. Here are some examples:
I forgot my dinner date with a gf even though we spoke about it 2 days ago
I get my Dr appt days and times wrong
I forget to pay bills
I forget what i'm about to do and stand around wandering
Oh the joys of being a parent.