Motion-triggered night vision cameras take photos 24/7 for invaluable info find to find your missing cat. Two recommended versions: The standard mini-trail cam uses an SD card you retrieve and take home to view the footage each morning. The SPYPOINT will send images directly to your cell phone 24/7 and comes with all the needed supplies. My favorite budget cam under $50 is this mini version above.

This HAUSBELL listening device amplifies the tiniest sound so you can hear your cat if trapped in a shed, garage or other enclosed space you can't access.

Most traps sold in stores are made for raccoons. Cats lean over the trip plate and eat without being captured. Cat traps are made especially for cats both in length and shape. TruCatch traps are the best and used by TNR cat trappers across the US but not always available, so Tomahawk cat traps are a good option and a little cheaper. I have and use both.

This wireless security alarm lets you know if your missing cat tries to come home and can also be used to monitor your trap from 300ft away. The receiver end goes by your bed and will DING at any motion.

Garden flags for posters are ideal for putting up attention getting signs exactly where you want them.

These weatherproof foamy sheets are available at Michael's Craft stores but you can order them cheaper at Amazon. Borrow a pack of mine as they are reusable.