DIY wooden bike rack -- looking for plans I'm planning to build a bike rack to store several bikes on the floor of my garage. Does anyone have plans for such a rack? We have a circular saw and a drill and the usual hand tools, but no router, so nothing too fancy, please! Something that can be made inexpensively from 2x4's and 1x3's would be ideal. 

Edit: Hanging bikes on the walls isn't an option for me, I'm looking for floor rack designs only. 

Edit2: After Gary.Ray's answer below, I came up with this:
If you don't mind punching some holes into the wall, the style my roomy and I have in our living room is very space efficient, and quite cheap.



It is basically a 2x4 screwed to the wall, with hooks placed into it at a 45 degree angle.  Because we both ride year-round, we put plastic don to save the walls, but being in the garage this may not be necessary.  The plastic does make a good white-board, however (garage decorations!).  Basically the wheel at the top is in contact with both the hook and the wall, and the bottom wheel is touching the wall.  Alternating hanging the bikes by the front and rear wheel means you can put the hooks closer together, and put more in the same space.  It is a very strong design, with ~8 drywall screws holding it to the wall.  Strong enough to hold a Big Dummy (though the rear end of the Big Dummy does sit on the carpet), a Pugsley, and 3 other bikes.

The size of hooks may vary.  For example, I have a large one for my Pugsley:



The plastic we used is also very cheap.  I think it was ~15$ for 100 feet of the stuff.  We plan to replace the plastic once it gets dirty, and I estimate the sheet we have will last 4-5 years.  We also used patches of duck-tape where the tires hit the plastic in order to prevent the tires from wearing through too quickly (especially important for the bikes with studded tires).  

The most expensive part of the build was the hooks, the most expensive of which were ~15$ (going from memory).