I agree with @mjr note everything and take pic's ready to use if needed and get a good lock if you think your indeed of one.
As for tracking if you want to do it then you can always have a look at getting a tile https://www.thetileapp.com/en-us/ No need to recharge batt last a year but then you have to buy a new one.
As for tracking if you want to do it then you can always have a look at getting a tile https://www.thetileapp.com/en-us/ No need to recharge batt last a year but then you have to buy a new one.