I have been on Craftster since 2004 (I'm an old fart) but on lurking status...five kids, the animals and stuff will do that to a craftin' sorta girl! Anywho...
We bought our first home here in Alabama; it's a nice little 2 bedroom single wide on about 2 acres. Two owners ago, there was a front porch added. It had some brown mottled indoor/outdoor carpet that got ruined, so I pulled it up and scrubbed the subfloor clean. I debated over what to do with the floor and thought about just using the unopened can of Kilz paint on the floor.
Here is what the floor looked like after I painted it with the Kilz...and trust me, you do NOT want to see how nasty the floor was before that!

Then my brain got to working...since we are "financially challenged", we really couldn't afford new carpet or anything of the sort. The previous owner left behind about 15 HUGE bottles of those acrylic paints you get from AC Moore. After thinking about something in the style of a floorcloth, I came up with a plan...
Here is a small version of what will be on the main floor. I am putting one of these in front of each door, and the larger version will go in the middle. The porch itself is 12 feet by 16 feet.

Detail of the Mariner's Compass drawn into the "rug"...

What do ya think?