Sorry can't do links but copied the following from moneysavingsexpert.com top tips....................
Reduced Cost Membership
The Youth Hostel Association (YHA) is offering annual membership for for £5 per person or £10 for a family. It normally costs £16 (individual), £23 (family), or £10 (under 26).
Membership saves you paying the non-member supplement of £3 per person per night all at YHA hostels across the UK, as well as those run by its international umbrella organisation, Hostelling International.
As hostels can offer massive savings over hotel prices in the first place, this represents a brill saving.
But aren?t all hostels really grim?
No! These days it?s not all chores and cold showers, hostels are most usually clean and friendly, often with free internet access and breakfast.
Plus don?t think you?re automatically staying in a dorm bunk; many offer single, twin and double rooms. The YHA also has some rather glam new properties including converted castles and churches.