More to explore:
Easy foam board tiered storage
Basic wood shelves from 2x10 boards. Use wood screws, countersink & fill with wood putty then prime & paint. Easy cheap shelves
nice shelf idea!
Love the red Bench Shelf
peg board shelves
Bruce's Woodworks - Paint Shelf
What a brilliant idea for extending or making more room on a shelf. This has so many applications and it's foam board. Can you say...I will be making some of those.
DIY shelves out of pipes and boards.
foam core shelf
Mi wife a I made this super simple, super cheap shelf! - Imgur
DIY shelves on a piano hinge that allows access to an ironing board behind them! Complete instructions.