We love and hate Flash. It could be funny for giving us games and a lot of multimedia effect in web pages. But sometimes web pages are using it too much! And it consumes too much computation power. I found ClickToFlash is a great tool for Safari (I guess Firefox would have similar plug-in). Now I can load and Flash brick I want selectively. It has whitelist that you can add your favourite sites without such checking again. Also you can select H.264 before loading video from like YouTube.