Humans are social creatures and I'm no exception, and that's why I like riding with groups. Plus I find that I push myself much harder with group rides than alone (despite drafting). Even when I'm redlining and silently pleading for a red light or for the group to slow down, I really wouldn't have it any other way. But I see a lot of posters here ride alone... I'm curious, how do you keep up the motivation to go it alone?