Very fortunate to have a garden, but it's all concrete slabs (we wanted to pull it up and put grass in when we moved, but haven't had time yet), and where DS is walking now I feel very on edge. He is 18 months so wouldn't leave him alone in the garden anyway, but thinking of ways to make it safer. I bought some cheap foam interlocking mats but they don't do much, was thinking of some playground style mats but obviously they are very pricey! Anyone done the same, any ideas? Or did you find patio was fine?