waste!
are you thinking ice cube trays, really???? and the answer is yes. using the ice cube trays to freeze things helps prevent waste which is good for the environment and your pocket book. i know this list is endless. once the liquid is frozen, remove them an place them into plastic bags or other container in your freezer so you have empty trays to reuse. remember to label the containers as you will forget what is in there. i forget all the time!
coffee and tea - make a little extra coffee and tea. put it in the freezer in the ice cube trays. add it to your coffee and tea 