How to Stop Dealing With Someone Else's Lateness

wikiHow: "Although being late is not an awful thing every once in a while with a legitimate excuse (sleeping in does not count), constantly losing track of your schedule is disruptive not only to you but to others. If somebody around you continues to be late every time you try to meet up, are meant to be handing in something or just in general, it can drag down your own schedule and perhaps, via association, make other people doubt your performance as well. Forcing yourself to wave off delays and disruptions should not be a frequent part of your relationship, business or personal. Here's how to prevent your blood pressure from rising when your 'late' friend pulls this on you. You don't need to get angry; you just need to be prepared."