The puzzles and solutions have no connection with each other. Also, very annoying that after you unlock a drawer, or door, or otherwise solve a puzzle it doesn't stay solved.
Pretty neat game.
To new players= Be aware that using the blocks in the sidebar gives negative points, so do all the blocks left in the sidebar at the end of the level.
Either the instructions need to be better or the clicking position less specific. Tried to use scrubby, body wash, and shampoo and couldn't get them to work. Accidentally got the shampoo to work after several tries clicking randomly on the baby's head.