UPDATE: I know some of you are looking for Christmas ones, they have these Santa Claus Christmas Leftover Food Foil Containers Set of 24 for $7.99 and the coupon code works on them too.
Collections ETC has these 24 Pc. Harvest Foil Thanksgiving Leftovers Food Containers (24 trays and lids) for ONLY $3.97. Use 3LK1D1C for 10% off + free shipping. There is a handling fee of $1.25, but it remains the same no matter how much you order. These would be much easier than washing tons of food storage plastic/glass containers, and you can also throw them in the oven to re-heat.