You consumer too much.  Luckily, you can buy something else to acknowledge your wastefulness.  The want vs. need glass is a $24 piece of art available from Alesina Design.  When you fill the glass up too much, it drains your excess all over the table.

I like the concept a lot, but I think there’s a lot of irony in actually buying something extra to make a point about consumerism.  Maybe you can be more shallow about the meaning and just enjoy the glass as a fun prank.