For a real cheap-o test bag, try getting one at Wal-Mart. They sell a Schwinn branded bag that about the size of a six-pack for around $10. It attaches to your handlebars/stem with velcro, so its easy to reposition. I did this and found out the bag works great for light loads (jacket, map, a few other small items), but really screws up handling if you put too much weight in it. As stated above, if you need to carry a lot of stuff on your front-end, use a rack that'll keep the weight as low as possible. I still use the Schwinn bag, I just know its limits and keep its weight to a minimum.