DIY Decorating Ideas: These may look like old "books", but they actually conceal a secret storage box. Hidden Storage Books Tutorial (I could do it without destroying old books though.
15 Awesome DIY Uses for Pill Bottles: Concealed Key Storage.
DIY Corner Shelves to Beautify Your Awkward Corner
I know this is a great way to hide things in your home (jewelry, safes, etc) but it KILLS me to see books destroyed like this - Multi-Book Secret Storage Compartment by Jason Poel Smith — via Make:
BIG SWING W/ DIY SIDING COVER - Exceptional outdoor living rooms and spaces with gorgeous landscaping. This is a gorgeous and inspiring gallery full of outdoor space designs. Read it