Wi-fi is the hotel extra travellers most resent having to pay out for, MSN.com has reported.
According to a survey by booking website Hotels.com, more than three-quarters of the 1,815 respondents said that they believed wi-fi should be free in hotels.
73 per cent also found car parking charges to be a source of annoyance, while paying for newspapers and towels at the gym were also highlighted as major irritations.
Alison Couper, Hotels.com communications director, commented, "Our research shows UK travellers are becoming increasingly savvy at making their holiday money go further and hotel extras can really add up.
"It is always wise to check what is included in the rate as there are often great promotions to be enjoyed if you shop around."
Buying cheap holiday insurance from InsureandGo is another way travellers can help make their spending money go further.