How did you prepare for a second child?

Dana Loesch at Mamalogues asked this question to her blogophytes last week. I felt like sharing, so this was my answer:

After "OMG, am I PREGNANT...AGAIN?!" it was like "whoa, family of four, here we come."

To make a long story short, I determined to have this child drug-free, which was the single biggest change from having my first baby. We got out the baby stuff and ordered some new diapers. I made my OB visits and counted down to D-Day. I delivered him on the day I was supposed to have the shower. Two days later, my daughter went to preschool and announced "He's out!" Then it was mounds of paperwork (wills, life insurance, college savings plan, employee benefits adjustments, etc. etc. etc...).

Ever since, my little boy blessing has been the Tasmanian Devil for the past three years. My husband and I both think that if he came first, and not our daughter, he would be an only child now and forever more. Hah!

Now, before anyone goes off thinking that I hate my son, I couldn't love him more if he were covered in chocolate (oh wait, he is). He's so cute when he's defiant, and he's cute a lot. :)

If you are a parent, how did preparing for a second (or third or fourth...) child differ from the first?