Okay.. for those of you who may be squeemish, click BACK now. Last week I awoke to the feeling of something crawling on me. I turned on the light and it was a tick! Now, I live on a wooded lot and have 2 cats that like to go exploring (and then come in and sleep in my bed)... so, I thought they're about due for a dousing of Frontline. Which I promptly did... and changed the sheets... and vacuumed. But last night, I found another! Blech! Are these things living in my house rather than on the cats? I have a cedar house and was wondering if they like the wood. Do those ultrasonic insect repellents work? I was thinking of plugging one of those in next to my bed.