Paradoxically, most people don't see it in their everyday lives because engineers do a good job at hiding the functionality. For example, we can't see AC electricity because it's securely insulated within the wires. Also, we can't see data packages because they are transmitted over wireless connections. We can't see ocean shipping containers either because we buy products in retail, not in bulk.
Remarkably, the tea bag was invented more than 100 years ago (US Patent 723, 287), but it got popular relatively recently when a new system of fast-food establishments, e.g. McDonald's restaurants, Starbucks Coffee shops, and others became a common place.
US Patent 723, 287, issued March, 1903.
Thank you, Max!
tags: packaged payload, distribution, system, example