+1

While I haven't had many issues with different baggage fees on inbound vs. outbound flights - this is useful information to have and save away. Hopefully it forestalls an issue at check-in but if not it becomes part of a more official letter to customer service.

I've found that often airline personnel don't always know their own carrier rules (let alone special rules for US origin/destination) and as often as not I think that has worked in my favor. I am polite and patient though if a charge seems high I will also bring it up. For example, flying from New Zealand to India I believe the airline policy was to charge by the kilo but they somehow found an exception for "sports equipment" that turned it into a nominal charge. I had what seemed like a very high charge flying from Indonesia to Timor Leste until I realized the price quoted was in Indonesian Rupiah so what I heard as "330" was really "330,000 Rupiah" or about US $20.