Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: To bake the polymer clay art,
set it on a baking sheet, put the sheet in the oven, and set the oven to 230F for 30 minutes.
Preheat oven to 275°F (135°C) before baking polymer clay.