P&O are well renowned for having the cheaper Gratuities at sea, hence making tipping incredible affordable, although not compulsory it is recommend to be £3.50 per person per day, and free for Children under 12. You can have this charged to your on board account or should you wish to tip personally you can ask reception to remove this from your account. This must be done on the first day you board.
Drinks on board P&O are also very affordable, with most being Pub prices, to give you an idea of the cost:-
Bottle of Beer – £3.25
Bottle of Water – £1.45
Soft Drink – £1.70
Coffee – £1.90
Glass of Wine – £3.15
Spirit Plus a Mixer – £3.50
Drink packages are also available to purchase on-board
Prices are all subject to change.