Over 100 pounds of food are wasted per person each year. Take smaller portions. Plan meals wisely and buy based on the number of guests you expect. Save energy by cooking multiple items in the same oven. Buy fresh foods carefully, not just because they are cheap or on sale.
Research shows that cheaper foods are wasted at a higher rate than more expensive items.
Give extra food to guests in plastic containers. Donate what's left to local food banks. Turn down the heat before guests arrive. Their extra body heat will help warm the room. Consider renting, rather than buying, a gown or tux.