A cart makes everything so much easier at a match, particularly when you head for the 600 yard line. I got this little beauty at Harbor Freight for $42 and did the paint job myself (amazing how much you can get accomplished when you're unemployed). They come in red, and it started out in life as a welding cart. The list price is $75, but it was (and may still be) on sale for $49.95 and there's a 20% off coupon in Rifleman.
After I took this photo I strategically placed some eye bolts for bungies. This thing is rock solid, relatively light weight, and handles range terrain with ease. Take all your junk with you.