One downside to our mild winter last year is fleas and spiders this year. If your pet is not on a routine flea treatment, for their comfort you may want to get your pet on one. This appears to the year of the flea.
For eight years we have used our own dogs as "canaries in the coal mine" and have treated them for fleas. We know that if they come down with fleas, then there is an issue in the kennel. This year for the first time we had to treat our dogs for fleas.
Our groomer was the first to see the problem with dogs coming in for grooming and baths, dogs that have not even stayed here. She has had to use a lot more flea shampoo than normal.