 TCE was a vocal force in Houston's negotiation of a new recycling contract, helping secure glass and single-use plastic bags as part of Houston's move to single-stream recycling.The primary tool of TCE is canvassing.Five to six days a week, TCE organizers head out into Texas residential areas and go door-to-door educating citizens on current issues and getting them involved by collecting membership contributions and having them write letters to corporate, federal, state and local figures.