I read about the Timestrips product on the [non]billable hour where Matthew conceives of using the product to organize stuff on your desk. What are Timestrips?
Timestrips® are single-use, disposable, smart-labels, which automatically monitor lapsed time, ranging from under 1 day to 6 months.
In looking at the Timestrips site, it seems that all of the products are currently geared towards food service and health care. I wonder if anyone from Timestrips is doing a search for their product on Technorati and realizing that bloggers are coming up with different implementations for their products. Wait until those Getting Things Done fanboys start playing around with these things.