One Cup Coffee Brewing, Cheap (Free!) and Easy!

Step 3 Step Three:

Take the filter, and poke into a vaguely cone shape. Stuff that into the bottom of the toss-away cup, and fold about 1/4 to 1/2 of an inch over the lip. Use a rubber band, or paperclips, or whatever, to secure this in place. You HAVE to secure it in place, or you'll just make a mess later. Also, the slight point in the filter is important, otherwise the brewing coffee will run down the side of the toss-away cup, and generally all over the counter as it flows over the edge of the mug instead of /into/ the mug. Found this out the hard way.