| These are a pain but when kept clean they're really beautiful. To maintain those gravel walkways - I use a regular metal leaf rake. It does a fairly decent job of picking up debris and smoothing out footprints and other irregularites. Just lightly skim over the surface. It works rather nicely without gouging deep lines in the gravel like the flat rake does. It also requires a minimal investment as these types of rakes are usually around $10. If you have some more money to spent, probably the most effective method is a leaf blower. However, I recommend practicing with it first as it can blow the gravel right into the beds if you're not careful. | 
