There is an easy way to do most webcam caches without requiring a second person, cellphones or a hotspot. Webcam Watcher will monitor up to 20 webcams and can be set to record images to your hard drive every X minutes or when a Y% change is noticed in the image. Install it on your computer at home and leave it run while you are away, then review the captured images when you return. So easy it's almost cheating!