Looking for an alternative to coffee to start the day or a natural mid-day boost? Give Guayaki Yerba Mate a try. It comes from the rainforest (to quote Phoebe Buffay- "they make the best stuff in there") and is 100% organic. Mrs. WYA! has a low tolerance to caffeine but she reaches for this every morning and it never makes her jittery. However, it has enough of an energy boost in it to perk up Mr. WYA! (who has a high tolerance to caffeine) on afternoons that he needs a lift. We usually buy our bagged Mate at Trader Joe's and occasionally pick up a bottle at places like Winding Way Farms or Whole Foods.