Not sure this is the right section for this topic, but as a feminist would be interested to hear what others think...
I recently got married and didn't change my name - which DH was completely fine about.
I was talking to a married friend who also didn't name-change, and she said she regretted not putting her husband's name after hers on her passport, because she now has a DS and is about to take him abroad on her own for the first time - so may have extra faff at Customs as a result (i.e. of the 'why does this child not have your surname' variety')
I am expecting DD any day now AND my passport is due to expire shortly. If I do put DH's surname after mine on the passport, will it save me a lot of trouble in the long run? I have looked online for advice and some people seem to be saying a legal letter countersigned by husband is required to say 'I give permission for this woman to take my child abroad' or words to that effect, which leaves me a bit 
Of course I appreciate it's for a serious reason, to prevent kidnapping and child abduction, so I'm tempted to go for the easy option and put both names on my passport. Does anyone know if there would be other implications, though - e.g. name on passport being slightly different to what's on my bank card/driving licence/bills, etc might cause trouble when trying to use the passport as ID?
The other option would be adding my surname as a middle name for DD, but we have 2 middle names picked out that we like already and I wouldn't want to drop one in favour of my very dull surname...