[Q]: Which of the following solutions is better for the following goal:
How much does it cost to make a floating shelf?

[A]: Approximate Total Cost: $10. The DIY Wood Floating Shelf can be made for about $10 in materials cost. This is the cost for the wood, wood finish, and other basic supplies. *Note: This doesn't include smaller things you may already have around the shop, including: glue, sandpaper, etc.

[Q]: Which of the following solutions is better for the following goal:
To add new music to an MP3 player without paying for it,

[A]: go to a library and find CD's that you can download onto your laptop.

[Q]: Which of the following solutions is better for the following goal:
How to coat an Altoid tin to bake bread in it.

[A]: The best thing to use is a dab of the olive oil and lightly coat the sides and bottom of the tin so the bread won't tear when you pop it out. Dump a little flour in the tin, close it and just shake it up a bit to get an even coating inside.

[Q]: Which of the following solutions is better for the following goal:
Prevent toothbrush from falling from sink counter.

[A]:
Store in a coffee mug.