Customers can resize images, add or delete items, and view product details to create up to 75 unique looks.

FORBES: Nordstrom Launches New iPad Shopping App

Buyers can almost think of it like a game: They choose options to build their dream homes, then add or delete items as the budget permits.

WSJ: That'll Be Extra

Likewise, the firms that compile market benchmarks periodically add or delete stocks, forcing index funds to buy everything that is added and to sell everything that is deleted.

WSJ: The Intelligent Investor: The New Supercharged Index Funds

What jobs would you add or delete from this list?

FORBES: What Are the Most Stressful Occupations?

If you later add or delete songs from the music library on the Mac, the changes will be duplicated on the iPod the next time you plug it in.

WSJ: Apple Brings Flair To Its MP3 Player

Zinc fingers, so named because they contain a zinc atom and are shaped like an index finger, can turn specific genes off or on or to some point in between, delete genes altogether or add new genetic material.

FORBES: Magazine Article

Files can be opened with the included Inkling Sketch Manager software to edit, delete or add layers as well as to change formats and transfer the files for adjustment and editing in creative software applications.

ENGADGET: Wacom Inkling smart pen does drawing the old-fashioned way -- sort of (video)

In normal operation, your default "channel" -- Chumby's terminology for a particular set of selected widgets -- cycles on an endless loop, and if you'd like to add widgets or channels, you log into Chumby's site to do so (though you can delete widgets and freeze the display right from the device itself if you need to).

ENGADGET: Chumby One review Hands-on