Maybe get one of these:queensheba wrote:but I am just not sure if I am responsible enough yet because I forget things....eg....my purse, and "oh, where did I put my keys?".
http://www.defensedevices.com/child-saf ... alarm.html
They may have some left, but the above shows to be discontinued.
Below is a little more sophisticated.
http://www.defensedevices.com/rfid-tag- ... ystem.html
You attach a transmitter to the item you don't want to lose and wear the receiver.
When the distance between the two exceeds a certain amount, the alarm sounds.