My wife saw your post for this shelf and knew it would be perfect for our half-bathroom. She showed it to me and I agreed. I built it in a few hours one afternoon. Stained and sealed a few days later and it fits perfectly. Now we just need to wait (impatiently) for everything to cure so we can actually begin to use it. We'll try and share another final photo when in full use.
$5 for 2 2x4s (sides)
$10 for 1 1x10 (shelves - ripped to shorter widths as needed)
$6 for 3 1x2s