And it's not just working in a charity shop, y'know! A quick look at the Do-it.org website has a range of opportunities including: Helper For Toddler Dance Classes, Beached Bird Surveyor, First Aid Volunteer, and Treasurer.
The best place to look would be www.do-it.org.uk, and you can also visit Voluntary Norfolk on Pottergate to pick up leaflets and speak to someone who can match you to your perfect volunteering role.