Between syncing my Contacts (default app that comes w/ phone) with my Google, Facebook, and Twitter contacts; I now have a HUMONGOUS list on my phone. I like the synced contacts because I actually use all these sites regularly and have people on different "channels" that I need to see all in one place and communicate with from my handheld. But the giant list is really becoming a problem. Depending on what I'm doing at the time, a large percentage of the contacts on my screen are irrelevant (although they may be very relevant when I'm in a different headspace) and it's bothersome to sort through them. Also, it increases my chances of accidentally sending something embarrassing to the wrong person. What I need is a way to sort my contacts, hide the groups I don't use, and be able to access short, topical ("relatives" for example, "buddies" and "clients"). This function is already present as "Favorites", but I need more categories than that. I can't be the only person with this problem, and I imagine there's an app for it. What do people use?