Note, reusable is off the table (because DH won't do it, and will revert back to the aforementioned Dunkin Donuts habit).
So what if *YOU* did it? A reusable k-cup is just another k-cup. Every morning or night before, prepare the k-cup for him to use in the morning. Have it sitting right there ready to go. It only takes about 15 seconds to put coffee in one.
He won't bring the cup home from his office. :( He won't bring in lunch often, except for really favorite leftovers. When he takes them in, he leaves them there for weeks, until they grow mold and become incredibly nasty.
I understand you are trying to save me a few more pennies, the problem is this effort will result in not saving the dollars. I'm just really not sure how I'm failing to communicate that if the hurdle is even half an inch higher than the k-cups arriving at his office and he has to put them in the machine, he will NOT do it, and will revert back to Dunkin Donuts. I'm trying to avoid that by doing all of the work for the cups (finding the keurig machine on deal, buying the k-cups and shipping to his office, etc).
jdoolin is right. If his office has a hot water dispenser (most do) then I recommend bringing a french press. Nothing is easier to clean than a french press and if he is truly an addict he can drink several cups from 15 seconds of effort.
He had one there for a while, but didn't like cleaning it.
If it's not clear from the above posts, while my husband has many wonderful and admirable traits, he has several terrible ones, including procrastination, laziness and refusal to clean. I'm chief maid and cook around our house. Yes, this pisses me off, but I have not been successful in effecting any change in his behavior, so I have to adapt mustachian principles to just what I can do entirely by myself, such as cooking all of the meals and cleaning up all of them rather than ordering takeout, bringing in lunches for just me, or getting k-cups delivered to the office rather than have expect him to clean a coffee machine or k-cup. You can lead a horse to water, but...
So just to refocus the conversation back on what advice would be really helpful for me, and away from things that won't work, please let me know if you have ideas for where to get k-cups. Thanks 4alpacas, I'll check that out.