Are you hanging pictures?  Installing a new set of shelves? 
Finding the studs in a wall using a stud finder is an absolute must!

Johnson Level & Tool 160 Stud Finder PlusCheck PriceZircon StudSensor e40 Electronic Stud FinderCheck PriceStanley 47-400 Magnetic Stud FinderCheck PriceBosch GMS120 Multi-Scanner Stud FinderCheck PriceStanley Tools Stanley Stud Finder Sensor 150Check PriceStanley 77-500 IntelliLaser Pro Stud Sensor and Laser Line Level Stud FinderCheck PriceBlack & Decker BDL190S BullsEye Auto-Leveling Interior Line Laser with Stud FinderCheck PriceZircon StudSensor Picture Hanging Kit with Edge Finding Stud FinderCheck PriceCH Hanson 03040 Magnetic Stud FinderCheck PriceProSensor 710 Precision Stud FinderCheck PriceStudSensor SL Stud FinderCheck PriceMaster Magnetics #07512 Stud FinderCheck Price

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