How to remove a sticky label or a sticker from plastics or goggles?? I bought a couple of glasses, and on the bottoms near...

I bought a couple of glasses, and on the bottoms near were price tag (lables).
I tried to take them rotten, but I cannot clean the cement off...
I soaked those specs in hot marine and then scrub, but still did not come out...

Does anyone know how you can clean those specs??
It happens regularly, so I do want to know tips...
What Is Tar In A Cigarette?
Answers:    goo b gone!!
What's your strategy at getting stains rotten carpet?
For plastic items, you can use Goo Gone (or Goof Off, or Goo-Be-Gone). But, use the ammonia-based stuff (in the plastic spray bottle) and not the petroleum-based stuff (in the metal can). The stuff in the metal can eat through plastics. But, the stuff in the plastic bottle is protected for plastics.
Do you bathe colors contained by reheat or...