Usually goo-gone works for this but I guess it will be a pain finding that. Use a credit-card and some heat [Hair Dryer works well] and keep at it. Do not use a blade - too much possibility of wrong there if you don't have a steady hand.
After you are done with the hair dryer use some liquid baby soap and keep at it. Once all goo is gone use some polish to get rid of any blemishes put in the process.
Edit: It should take you a while. I removed an L.L. Bean sticker from my Mac this way with no damage to the anodised finish at all [Much more prone to permanent marks due to the process].