When purchasing supplies, try to buy in bulk instead of large quantities of small packets. This way, there will be less packaging to throw away. This is particularly important when you are holding the reception in your home, garden, or self-serve hall. You might not have much choice in a banquet hall when they purchase the supplies for their own inventory.
But the reception is not the only event at which party supplies are needed. Don’t forget to buy in bulk for bridal showers, the wedding rehearsal party, the stag, …