I use a Keurig and just make a regular cup of coffee and then pour it in a big tumbler full of ice. I drink it pretty fast before all the ice melts, so it doesn't really get that watered down. Plus, I buy the extra bold coffee.
Started out at 405.5 on 7/31/12. Then lost 156 lbs to get down to 249.5 by 7/31/13. In the past year I have put back on over 40 pounds and reached a high of 291.5. But I have recommitted myself and quickly took off ten pounds by 7/31/14. I am now trying to take off the weight I put back on, and then the rest of the weight I was originally trying to lose. Hopefully in the next year I'll get it done.