Glossary
Applicator
An applicator is any device which aids in the application of stickers and adhesives to their surfaces. In order to apply to a surface it must be clean and free of all dust and dirt.
The most common way to stick a sticker is with a finger. One kind of proper applicator however is a straight rigid edge such as a plastic squeegee or credit card. Another kind of applicator is a roller which smoothes out a sticker.
Application tape can be used to make a sticker thicker and aid with the use of a tool applicator.