I'm lucky....having 2 sons that are Locksmith's...
I have 4 sets of house keys?*#!?*
Only because they don't want to have to come all the time, if I loose my 1st set.
They don't mind paying for each set(which has a fair few keys on each one).
They also want me to have peace of mind, I guess they think I am getting older...and well ''mum is going to loose them'' at some stage.
Funny thing is?....never have.
So now I have plenty of them, just waiting for me to make that one mistake.
I would tell anyone
Always have a spare car key in your bag.
NOT house key ever.
Always hide a house key outside in your back garden, but do it at night, when no one can see.
Keep a full set of keys at home....so they will take the place of your set, you loose.
Never ever put any I.D. of name etc on your keys....be prepared to once they have been lost, (they are gone).
Unless you get lucky and find them.