The QE2 operates with US dollars so there are no conversion charges.
Coffee and tea available in lido restaurant aft, plus some great cookies - no charge
Drink charges are normal for ships today. Tip added, so ignore the extra tip line, unless you want to reward extra good service.
Internet system allows one to write e-mail off-line then send for a one-minute charge, but read the instructions carefully, then practice to accomplish within the minute. It takes me about 45-50 seconds!
For those who enjoy a traditional sea voyage - dressy and no ports - there is no other.