Also, remember to double-check with your childcare provider about what your child will need each day, and organize it the night before so you are both ready to go in the morning.
Talk to your manager about the amount of time you'll need to pump and work out a plan. Many mothers continue to breastfeed for several months after returning to work, but if you find it too difficult to keep up with, go back and reread tip #1.
Adapting to a new routine and the ever-changing needs of an infant, all while running on so little sleep, will make the first year particularly difficult. Even working moms that "make it look so easy" (everybody knows at least one!) are having the same struggles. However, as you adjust to your new lifestyle, and as your baby grows and becomes less demanding, you'll eventually be able to come up for air. Hang in there, Mom!