What is the best ground cover for an area used by dogs that stays dirt

Wendy
by Wendy
All around my porches, due to 3 dogs has become dirt and therefore dirt or even mud ends up in my house--- I am disabled so it is hard for me to clean their paws really well as they come inside. I was thinking pea pebble but I know that won't stay in the area- I am very limited in project funds also. Thank you for your advice! Wendy

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