The original walkway was made of natural stone, but these were transferred to the back for a patio. I appreciate any help you may render. You just prepare your soil by smoothing it out and removing any stones or pebbles and then lay your plastic grid down and pour cement in it. It's very easy and creates the look of bricks or cobblestones. You can also add inexpensive dye to your cement to give it a rosy tint like brick.
Cement is just about the cheapest material to use.
JMB in KS Recycled Cement Something my sister did to make her own patio might also work for a walkway. She collected broken pieces of cement from someone who was ripping it up, broke it into manageable pieces and various shapes and made a beautiful patio by arranging the pieces like you would do with flagstone or other material and filled the cracks with small stones and pebbles from a nearby river bed. It looks great and only cost her time. I myself like mulch placed between landscape timbers recessed into the ground. Be sure to place a weedblock fabric under whatever you decide to use.