<human>: Here is a goal: Build a book shelf out of old lumber.

Which way makes more sense to accomplish this goal?

OPTIONS:
- Sort out lumber and make sure you have two wide pieces 8 x 2 6 feet long and then cut plywood for the shelves, attactc all the shelves evenly spaced with nails.
- Its best to use glue instead of nails and dont measure anything.
<bot>: Sort out lumber and make sure you have two wide pieces 8 x 2 6 feet long and then cut plywood for the shelves, attactc all the shelves evenly spaced with nails.