Design Patterns

Dropdown Chooser, Tidwell's "Designing Interfaces" (p. 231) - Extend the concept of a menu by using a dropdown or pop-up panel to contain a more complex value-selection UI.
Illustrated Choices, Tidwell's "Designing Interfaces" (p. 233) - Use pictures instead of words (or in addition to them) to show available choices.
List Builder, Tidwell's "Designing Interfaces" (p. 235) - Show both the "source" and the "destination" lists on the same page; let the user move items between them.

Examples of Upload

Uploading an avatar