J.W.
yeahhhh!
It's a tough few months to get through, but you will make it, it does get better, and in the end it's so much fun.
Mine are 21 mos apart.
I'm all for the coffee idea ... I still do it ... and I'm breastfeeding. I know the caffine passes on some, but I don't see my little one any worse for wear. =)
If the older one does bottles or sippy cups, have the first one of the day ready before you go to bed. (an easy chore for your husband)
The other tip I received, was that when you first introduce the baby to your toddler, make sure the baby is in a bassinett, or on a bed, but that neither you or the Daddy are holding baby. This helps with the whole initially jealousy thing. Hold your toddler as you introduce him/her to the baby.
We did that ... I don't know that it made a difference or not, but it seems to make sense.
Hope all goes well!