Be careful when you pick up your certificates. When they first started selling them, they were packaged 2 to an envelope. The next set I bought were stapled in pairs with no envelope. Yesterday, they tried to give me only one $50 certificate per packet purchased (no envelopes or staples) until I pointed out the "2 per package" note on the envelope containing their supplies. He also had no clue how long they would carry them because they were surprised when they received the latest batch at the North Austin store.