My neighbor just brought us a small gift bag of organic coffee this week. They were thoughtful enough to "loan" us their coffee grinder in the event that we don't own one. Now that is attention to detail with gift giving, I thought to myself.
Perhaps you can borrow a neighbor's coffee grinder, grind up your beans, store them in an airtight container, and use them just like you would the pre-ground coffee you normally buy?
How did the spice grinder and blender work?
When I found myself in that spot (before I got a grinder) I would take the whole beans to the nearest grocery store that had a self service grinder. Nobody ever cared.