For several years I've used Permethrin quite a bit around our place, most frequently around the foundation of two concrete slab buildings (our house and a shop). The spray goes up under the siding then drips down. Also use it sparingly on some plants, usually when moving in the house from outdoors. We have three [outdoor] cats. :/ I've never used it on clothing...I bought some of that stuff as I was being nailed by deer ticks and the story was that you just spray it onto the legs of your bee clothes and it will kill ticks climbing up for weeks and weeks. Fortunately I read up on Permethrin and found that it is deadly to cats if they would rub themselves on your legs as cats do it could be fatal to them. As I have 2 cats picked up from the roads and fields as kittens I decided to give it a miss and just put up with the ticks.