As a touring escort who visits many places I generally just 'keep' the ones I DON'T WANT TO MEET AGAIN.
There is also the NS/TW that I keep forever and after I've been to Belfast I forward on to Nicole. I've got to admit NI has the biggest number of TWs than any other place I visit and even two or three years down the line the same TWATS still try to call for a booking ..................... and they are on to plums but I don't tell them that at the outset of the call ........... I wait till they have spent a few minutes on the phone THEN tell them they are on to plums. Sorry but if I'm bored ........... what else has a lady got to do?