To save on instant coffee when you are without a drip coffee maker such as camping, traveling, backpacking and other reasons consider this. By tying coffee in a coffee filter with a string or thread, you can submerse this in your boiling water to make coffee. If no coffee filter, consider using a paper towel or like material for substitute. Dental floss will replace a string also. By tying a small loop in the other end and pulling string through the loop, you will have a slip noose to tie to anything for a handle. You should be able to make the coffee to desired strength by the amount of coffee or duration of submersion. Can you see the minimalist in a tiny house doing this?