Goal:
Buy freshest bag lettuce.
Answer:
Choose the flattest bag because puffier bags have released gas due to age.

Goal:
bottle opener
Answer:
can open canned food easily

Goal:
how do i color my hair?
Answer:
Buy a boxed color and follow the directions on package.

Goal:
Maximize space in a deep shelf.
Answer:
Stack different sized boards on each other to create stair effect.