Set of 4 glass Anchor cups with lids, $6.02 (Seder plate)

I bought 2 sets of these 6 oz. glass cups with lids these this year for $6.02 each with free Prime/SuperSaver shipping.  

I'm tired of dealing with the remains of the seder plate in between seders.  With these cups, you just snap on the lid and it goes right in the fridge. You can just whip them out for the second seder and put them right on the plate.  No ripped foil, no ziplocks, no gray horseradish, no mess.  The spare two cups can hold extra charoset, salt water, etc.