How to remove a vinyl decal from a surface?

When you need to remove a vinyl decal, you can use a cutter to peel out the vinyl decal.
If the vinyl decal sticks very well on the applied area, you can use a hair dryer to blow and heat up the vinyl decal first. By doing so, it will be easier to peel off the vinyl decal.
You can start from one corner to peel off the vinyl decal. The whole vinyl decal should get off easier.
After you peel off the vinyl decal, you can apply a new vinyl decal on the same area without any additional cleaning.