Co-sleeping - I'm for occasionally. Talon sleeps in bed with my about 2-3 a week but that's because DH works away. He would sleep with me sometimes when he was a baby too, usually if he was unsettled. I would never set his bed up next to our bed permanently or anything like that though.
Extended breastfeeding - Not for me. I think once they can ask for it, it becomes a bit weird! 6-12 months breastfeeding would be enough for me.
Baby wearing - All for....until they get too heavy!