Unfortunately, most of them don't. Your mother can't use your microwave, your new car stereo has a front panel straight off of a space shuttle, and it always takes way too long to figure out which one of those five identical black remotes on the coffee table turns on the television. The good news is that it doesn't have to be this way.

		Sony Trans Com in-flight entertainment system Sony needed a simple but complete in-flight entertainment system featuring video on demand, including the passenger, flight attendant, and maintenance interfaces. The passenger interface was subsequently granted US patent #6,034,688.
		Logitech image scanning software Logitech needed a consumer-level sheet-fed scanner that eliminated the need for customers to understand DPI, bit depths, computer hierarchies, and other computer jargon. The Logitech ScanBank software provided all this and more.
		Business telephone concept This concept design shows how an everyday product we all use and take for granted—and automatically forgive its many annoying behaviors—could be made substantially better. Includes a conference call feature that even the CEO can use!
		Television hub concept Home entertainment systems have been spiraling out of control for years. It's now to the point where the average consumer has a hard time even figuring out which of their five remote controls turns the television on. The TV Hub tackles these issues.