Goal and options: How can I open a tight key ring without hurting my fingers or nails?
output answer: Use a staple remover and push the points of the remover between the bound parts of the ring to widen enough to add or subtract a key.

Goal and options: To make ice last longer in a cooler.
output answer: When you go to the beach and take your cooler with you, sprinkle salt on the ice so that it stays frozen for much longer.

Goal and options: Remove hardened glue from the glue lid
output answer:
Run under warm water, use your fingers to scrap off the softened glue, place removed glue into the trash