Five Things You Need to Know, Saturday, May 19 and Sunday. May 20

1. The Foxboro Jaycees' Spring Craft Fair is Saturday, May 19, from 9 a.m. to 3 p.m. on Foxboro Town Common. Admission is free.

2. Butterfly Landing Family Child Care Open House will be taking place Saturday, May 19., from 11 a.m. to 2 p.m. at 182 North St.

3. Gillette Stadium will once again be hosting the 2012 Lacrosse Championships for men’s Division 1, 2 and 3 May 26-28,

4. The New England Revolution will hosting a “Salute to Heroes” in conjunction with Armed Forces Day Saturday as they play the Houston Dynamo in a 7:30 p.m. game.

5. As part of a day to celebrate parks in the state, the Massachusetts Department of Natural Resources will host an open house at Pine Knoll Cottage in Barton State Park from noon-2 p.m.