Where to get Christmas tree trimmings?

My family likes to decorate our tables with tree trimmings. Usually I can go to a Home Depot or Lowe’s and ask for trimmings and they’ll give them away for free. I tried one Home Depot so far but they said they didn’t have any and aren’t allowed to give them away.

Does anyone know if a place that will for sure have tree trimmings I could pick up?