[Q]: Which of the following solutions is better for the following goal:
Cut out a leather string.

[A]: Use a ruler to mark two long parallel straight lines on a piece of leather, then cut.

[Q]: Which of the following solutions is better for the following goal:
Soap made from soap base and essence with microwave and a mold.

[A]: Use glycerin soap base. Use a sharp chef's knife to chop into fine pieces into a measuring cup. Use twice as much as the molds volume. Microwave at 30 second increments, checking for a completely molten liquid. Add essence. Pour into the mold. Remove when cold.

[Q]: Which of the following solutions is better for the following goal:
How can you make yourself look more natural in a photo?

[A]: Forcing a smile doesn't work, instead laugh naturally, think of something funny, this translates better in a photo.

[Q]: Which of the following solutions is better for the following goal:
Make a phone stand for your smart phone.

[A]:
Take a credit card or similar type of card and fold one end about half of an inch from the edge up and the other also about half an inch from the edge down. You want to fold the short ends not the long ends. Now you can place your phone on the end you folded up.