Here is something clever that I have just found out that you can do… block ads on youtube (though maybe I am a bit behind the times and you guys already know about this). I know.. I know this isnt really DIY but I just had to share it with you guys. If you are using firefox or chrome just install an adblocker extension and say good bye to those frustrating and loooooooong ads on youtube. Plus adblockers also get rid of just about all annoying ads from popups to silly sidebar ads.
-The most popular adblocker is adblocker plus (wow I bet that took something to think of that name) however I found that one slowed down my computer and apparently google has been paying the inventors of adblocker plus millions not to block some of there ads. I would instead go for a plugin called Adblock edge instead