Raised bed/planter/fence/privacy screen: this is now featured at http://www.instructables.com/id/HOW-TO-BUILD-MULTI-USE-RAISED-BED-PLANTERS-WITH-PR/ with complete instructions for building a planter with a back 48"H. You can get a PDF too. Please vote for me in the "Outdoor Structures" contest. Thanx!!
A jig and screw kit allows fast installation of decking without pilot holes. The secret of the handy hidden fastener system is an augering screw that hogs out wood as it's driven, along with a special tool that holds it at the proper angle and acts as a board spacer.