Okay, you inventors, here is an idea I give you free. It may make you rich; you're welcome.
I'd do it myself, but I am busy with my journal, Dribble.
Perceived problem: the waitress dashing about the dining room servine coffee... with TWO COFFEE POTS, one in each hand. One had regular coffee and the other had de-caff (decaffenated). She would pour the kind of coffee each resident requested, using one hand or the other. It was slow, awkward, and, in fact she says, painful, using both hands that way.
Proposed solution: a coffee pot that pours either regular OR de-caffeinated coffee at the touch of a button.
Okay, Inventors, here's what you need to do. Design an insert that will slip into an ordinary Silex style coffee pot that will hold the de-caffeinated coffee. A simple flapper valve operated by a button on the handle will shut off the regular coffee and let the de-caff flow.
The waitress can handle the pot with one hand, dispensing either style of coffee, and with the other she can hold the cup. At present, she can only fill cups that are sitting on the table.
Just think of the millions of coffee pots now in service that can be upgraded with your invention. Hundreds of thousands of waitresses will thank you. Who knows how far they will go with their gratitude? You may even get a few proposals...(or propositions).
Your name may not become a household word, but you will be rich. If you come to live in our old folks home in retirement, you'll have enough money to pay the rent, and even go to Starbucks for coffee from time to time. Come to think of it, Starbucks might be your biggest customer.
I don't expect a cut of your riches for giving you this idea, but you can buy me a cup of coffee (regular) at any time.