I love my twins too! I really can't imagine having only one. They're so much fun--and mine aren't even 18 months old yet. They're going through a phase right now where they love to kiss each other. They kiss each other all the time. If one takes something from the other and makes her cry, the offending sister will go up to her and kiss her. It makes me cry everytime.
The other day we were at a restaurant & we were trying to get them ready to leave, but they insisted on kissing each other. Dp and I had to wait over 5 minutes for them to stop so we could put their coats on.
Actually, after the first 6 months I thought it was a LOT easier. We do have our bad moments (or weeks :LOL, but I'm serious!), but for the most part it's much, much MUCH
easier than it was when they both had colic and refused to nurse.