Make your walkway look high end in quality for less money by using smaller flagstones for your short or informal walkway. Space your flagstones away from one another --- more than an inch or two --- which will eliminate your need to purchase as many. Use Elfin Thyme to place between each stone's cracks to decorate your walkway between the stones. This thyme grows low enough to the ground --- and dense enough --- to make it an excellent choice for use with flagstone, and it helps keep out weeds. For another informal look, fill in the areas between the stones with coarse gravel or pebbles.
Make your walkway area look formal by using large calibrated sandstone paving slabs. Slabs of differing sizes --- with square and rectangular shapes --- will look unique but also uniform when you place all the slabs the same distance from each other. Make the areas between the slabs consistent in color and material by using sand or cement as your filler. To add to the formality, make a retaining wall of sandstone slabs to line your walkway.
Combine several colors and sizes of flagstones to make your home or garden walkway more diverse. Using a hodgepodge of bluestone, sandstone and stones native to your area, you can brighten an otherwise-dull landscape or day. Use diverse filler between flagstones to carry the variety aspect there as well; plant moss, which will be more eye-catching (and cooler to bare feet) in the warmer seasons. Also add crushed pebbles and sand between your stones. To make your walkway even more diverse, make it more formally structured on certain parts of the pathway --- such as at the entrance to your home, and again at the path's end (such as your pool) --- then break up the structure between the two points (spacing stones farther apart, separated by thyme or moss).
Grass may be an abundant material in your area during the summer months. If so, your flagstone walkway could make use of this ample natural material. Place a large flagstone on this grassy path ever so many inches just to help direct children and adults between your home and garden or drive --- and to add to the walkway's beauty. If grass or water is in short supply geographically, use other filler between your flagstones.