Just had to tell people about this. My mil had misplaced her purse a couple of times. I spotted this on a well known online shop- Wireless Remote Car Key Finder Fob Smart Finder Locater keyring Lost/Find Keys. It has 4 fobs in different colours which we attached to purse, glasses case, keys etc. When you press the remote finder the fob beebs so that you can follow the sound and find the item. It is fantastic. It has saved us hours of searching and upset.