Back when I was slicing and dicing specs that had to be compatible with IE6, I really wish I could have used TinyPNG. Preserves alpha transparency that works i

Back when I was slicing and dicing specs that had to be compatible with IE6, I really wish I could have used TinyPNG. Preserves alpha transparency that works in really crappy browsers, without resulting to weird CSS filter shenanigans. But even today, I really enjoy the service. Not sure what I would pay for it, but it is very convenient.