[Q]: Objective: To create a roux, you can
[A]: Add flour to melted butter

[Q]: Objective: Adding plant lights to shelves.
[A]: Add the lights using the hooks and wire that came with the lights to secure them to the bottom of the shelves above the shelves you want to have lights.

[Q]: Objective: Cool down a hot car quickly.
[A]: Roll windows down and blow A/C on floor vents only to force hot air out of windows.

[Q]: Objective: Prevent frozen car door.
[A]:
Place wide magnet over car door lock.