What are you doing next Labor Day? If you'd like an end-of-summer golf sojourn in New England, you always can enter the Deutsche Bank Championship — as a volunteer.According to tournament organizers, the Deutsche Bank has 1,725 volunteers this year. They come from 20 states and range in age from 10 to 90. There are 183 families who volunteer together, including a 90-year-old woman who volunteers with her 70-year-old daughter.Of course, the volunteers are unpaid — but they are feted and fed. Tonight the tournament will host a celebration for them, with a catered lobster dinner, live music and a fireworks show.