Yep, I've heard you can now buy a new version of Fairy Liquid, which meters the dose that you squirt into the bowl, but I've been experimenting with alternative methods to avoid wastage and cut out the guessing. Those pump bottles, which contain hand-washing soap, deliver just the right amount of Fairy, for a bowl of washing up, with a single press of the pump and no waiting for the liquid to trickle it's way down to the outlet, before squeezing.