Originally posted by SmallPanda:
I would think it is up to the person to decide for him/herself what
he/she wants to do for others.
As for me, I have stopped offering to hold open doors or carry bags
for women, probably because they have never offered to do
it for me or even said thank you. 
ummm, ...you expect a lady to offer to carry your bags for you?
Hmm maybe if you both go grocery shopping and she offers to carry
some of the bags with you,
it's a different matter - but carry your bag for you? OMG!
As for thanks, plz do bear in mind that when you offer to do so,
it's an act of gallantry; not a favor or in response to a help
request, thus no thanks are in order.
Sigh, no wonder the reputation of gents has been going downhill of
late 
TX