Do you have a temp gun? My spider got out two days ago. I took my temp gun and looked for the hottest spots in my room. I mean make sure that temp gun hits every foot of your room. Chances she is still in there. The warmest spots in my room was behind the rack, behind TV where all the wires are, under my desk and under my bed and at the head of my bed right up against the wall. And guess what, he was right there at the head of my bed on the carpet squeezed in between the bed and wall. I would just suggest using a bear trap( haha yea right, almost as bad as the tape idea huh ) sorry I had too. But al seriousness I would set a tub that she can get in with a hide and a heat pad. also put a dead mouse/rat in there over the heat pad( it will help distribute the smell a lil better. I'm sure she will smell it and also since the heat from the uth and once she gets in the tub she most likly wont go back out because I'm sure she already knows that the tub with the UTH is about the best source of heat and security around your house. Let us know when you find her. I know you will!!!!!