Dandy cord mats? i was talking to my partner the other night and he didnt know what i meant. a lady mum cleaned for had one in her kitchen when you picked up there was always dust underneath and as for standing on them without shoes it was very painful! i suppose they were easy to clean mop or better still put over the line and hose pipe it. i was beginning to think i imagined them!
I had to look up Dandy cord but as soon as I saw them I remembered that we had a blue one in the kitchen, they looked nice at the time but there was no practical use for them,as you say uncomfortable on the feet,dirt went through,they slid about on the floor and they had to be washed outside.