Andy M.
Certified Pretend Chef
...I usually roll them back and forth on the counter in the palm of my hand after I take them from the fridge. That helps get as much juice as possible out of the citrus.
Some say, roll them on the counter. Others say microwave them for 15-20 seconds. In the book, "What Einstein Told His Cook", Robert Wolke experimented and determined you should do both. I microwave lemons and limes for 15-20 seconds then roll them on the counter under firm hand pressure. Works great.