To eliminate loose trash bags on the curb and improve the appearance of neighborhoods on collection day, the Board of Health is proposing to give households a 64-gallon toter with an attached cover, Health Director Andrew R. Pelletier said this week. Mr. Pelletier said the board wants to launch the program in "the core of the town," where homeowners would be asked to voluntarily adopt the durable toter so officials can see how it works.