Things that are so good you should have 2 (or more)!

We live in a 4 story town home in Philadelphia.  That means there are a lot of stairs.  A lot.  1 week into my daughter being home (and 1 week too late) I quickly realized that I needed duplicates of the essentials.  Here is what I doubled up on. 

1. diaper bins - have one on every floor your child visits.  we liked our Diaper Genies.
2. bottle warmers - we kept ours in our bedroom.  at 2 in the morning, 2 flights of stairs don't make for quick feedings.  also makes it easier for dad to help!  we used the First Years steamer bottle warmers. get 2 of the same kind so once you figure out exactly how long to leave the bottles in, it is the same for both.  
3. travel changing pads - keep one in your diaper bag, under your couch, in  your car, in your stroller.  public changing tables are gross and there is nothing worse than having to change a diaper on one without one.  Buy cheap ones that fold up small and flat.  they are easier to tuck away and you won't be upset if one gets ruined and you need to throw it away.
4. bouncy chair or papasan chair  - have one that you can keep in your bathroom.  the sound of the water is soothing for the baby, the steam helps with congestion if they happen to be, and you get to take a shower while keeping an eye on things.  this was my sanity. a long shower during a nap was (and still is) amazing! 
5. car seat base - have a base in each car for your baby carrier.  nothing more annoying than having to deal with that equipment since it often seems like you need a degree in engineering to install it properly. same goes for car seats once your child is ready for one.  much easier to jump in and go.
6. toy bins - keep a small basket of toys in each room your child plays in.  less lugging things around and easier to clean up.  for a while, i even had a little bin in my master bathroom so I could get dressed for work and my daughter was entertained.