This is based on good and bad experiences on both sides of the fence. And I'm not claiming that I get it right every time myself. Ohh, if only.
8. If you do decide to remain friends, seek out opportunities to interact with that person in social situations involving other people. The more the better. Avoid quasi-dates. The other person will sit there thinking "I had a pastrami sandwich, and this is bread with mayo on it, and I miss my pastrami." Hilarity will not ensue.
http://boutell.livejournal.com/588866.html <-- original page,
the comments are quite interesting.
Easier said than done.
I had this sort of resolution but I failed 2,3,5, and 7
Just an add on, make sure the person you're dumping will be able to contact a good friend for support after the big breakup. Otherwise, they might take it out on either themselves, or you. Maybe tell a friend of his/hers first so that they can hang around so the dumpee doesn't try anything irrational.