The just-released HipKey ($90) may be the forgetful mama's best friend. The combination key fob and app ensure that your keys never run off again. Simply attach the crescent-shaped, Bluetooth-enabled key ring to your keys (or really any valuable, for that matter), and download the free HipKey app. Then, when the hooked-up device leaves a preset range, the app alerts the owner via a vibrating alarm. Don't worry about losing the fob. Switch the app to the "Find Me" mode, and an alarm will sound on the fob so you can find it.
If the technology sounds good enough to help keep tabs on a wandering tot, don't think the company didn't think of that. Simply set the app to "Child Mode," place the fob in your tot's backpack or pocket, and set the range you feel comfortable with your little one leaving. Once they move beyond that range, an alarm sounds on both the fob and the iOS-enabled device.