Goal and options: What sort of iron is needed to complete the solar alarm?
output answer: A soldering iron.

Goal and options: To make your own free mulch.
output answer: Soak and shred news papers. Mix in with potting mix and spread at the base of plants and shrubs to mulch.

Goal and options: Hem your own pants.
output answer:
Try on your pants and fold up the hem to where you would like it. Use a piece of tape to hold the hem up if needed. Take off pants, trim to size and sew a new hem.