I am chair of the Norfolk and Norwich Muscular Dystrophy Campaign and have been involved with the charity for 10 years (chair for 5). I co-ordinate the committee, overseeing the members and ensuring that ultimately we get fundraising support. We do street collections, supermarket collections, cheque presentations when groups have completed fundraising activities for the charity and drive the profile of the campaign in general. Last year we raised £50k!
The absolute impact is that we can help fund research for sufferers and carers as the government do not make grants for this cause available (and things are expensive - a wheelchair costs £10k!).