[Q]: Which of the following solutions is better for the following goal:
keeping yourself motivated for exercise

[A]: You can take a group aerobics class or try any number of movement-based exercise routines in groups

[Q]: Which of the following solutions is better for the following goal:
The best way to smooth the edges of a joint.

[A]: By using a file, you can easily smooth edges of a joint

[Q]: Which of the following solutions is better for the following goal:
To strain yogurt.

[A]: Pour the plain low fat yogurt into a large sieve lined with the muslin and sat over a deep bowl. Place this in the fridge for at least 24 hours, and you'll be left with a thick yogurt the consistency of soft cheese.

[Q]: Which of the following solutions is better for the following goal:
opening a jar lid that is tight

[A]:
Applying heat to the lid will expand it slightly, releasing it from its tight grip. Methods of heating include running the lid under hot water or putting the jar, lid first, into a bowl of hot water for thirty seconds. You can also use a hair dryer. Opening the lid once heat has been applied is best done with a pot holder or dry dish towel to avoid getting burn