Organising a party can be a stressful affair, organising catering, venue, entertainments etc. coupled with the stress of formulating a strategy that will get all of your ‘fashionably' late friends to the venue at roughly the same time is often more of a trial than we expect (I have cryptic little numbers marked in my address book next to certain names which allow me to keep tabs... https://xn--oj4bo4at8d0zbp18a1ha.com