Our daughter (16-year-old) gave up carbonated beverages last year. She was so caffeine-deprived that she even drank a cup of coffee at an early morning auction - and is still griping about it.
This year she is giving up computer games - the good news there will be for her grades I am sure.
It got old being the designated driver for 6 weekends in a row. I was everyone's best friend.
During that Lent, I was at a restaurant in Addison, TX (May Dragon Chinese)... I tried ordering iced tea at the bar. The bartender said we only serve Long Island Tea here and then walked away. I shook my head in anger that the level of service was nill + I was the king of all goofs for trying to order an UN-leaded version of tea at a bar.