Goal and options: To determine how big to make a hat so that it will fit you, you can
output answer: Measure the circumference of your head

Goal and options: To cut lengths of wood to use in a project, you can
output answer: Mark where you want to cut and run the wood through a table saw

Goal and options: What can I use to hold slivers of bar soap and make them usable?
output answer:
Use a length of pantyhose cut to about eight inches. The material is porous and allows the soap to gradually come out on your skin.