Every summer I succumb to the wailing meows of our calico cat and let her roll around outside in the garden, and every summer the calico witch-baby becomes lousy with fleas. Making your own flea repellent will not kill those pesky fleas, but it does a dandy job of keeping her less full of them after we bathe her and apply that awful toxic vet-obtained goo. Rather than reapplying that stuff when the first batch loses potency, we mist the witch-baby with this homemade lavender and lemon infusion so she can be flea-free until the next summer. This works on both cats and dogs, though some cats are not fans of lavender. Before you make it, waggle a small sprig of the purple buds near your kitty and watch for her reaction. If she runs away, omit the lavender and just use the lemons or substitute rosemary. Lavender oil can be too strong so I use fresh lavender from the garden.