There are many other ways to get rid of Carpet Beetles. First you want to see how they are getting in. This time of year is very strange to see them though. Bird nests in your gutters/window air conditioner units, squirrel nests in your attic, dead mice in attic/crawlspace/wall voids. Also old food laying around sometimes a lost dog biscuit under a couch, or in Springtime if you bring in outside flowers. I doubt you would be getting them from a neighbor though. If you start seeing more than 1 or 2 I would start looking into the things I mentioned because pesticides alone won't help 100%. You will need to eliminate the food source. Carpet Beetles are one of the few insects that can actually digest the protein in hair and fur and you can sustain a whole colony with a dead squirrel or mouse in a wall/attic. Good luck