1. Breastfeed immediately in the hospital, do NOT allow them to push formula. Your milk can take up to 5 days to come in, do NOT supplement in those 5 days. Babies can lose 10 percent of their birth weight when leaving the hospital. It's normal. Also, your body produces colostrum which is very important for the baby to get. So nurse, nurse nurse! :) Avoid artificial nipples for the first couple months to avoid nipple confusion as well! Oh, breastfeeding can hurt. Get some lansinoh cream, don't wash nipples with soap, get reusable breastpads (cloth pads are AWESOME and comfy), and contact your local Le Leche League and see a lactation consultant for help and support!
2. Get a sling/wrap etc. It makes life so much easier! :) I couldn't have survived without my sling.
3. Remember that at 3 weeks, 6 weeks, 3 months, and 6 months a baby usually goes through growth spurts: eating more etc. Don't freak out about supply, it's normal and while it can get exhausting this too shall pass!
4. Have healthy snacks on hand, and bottles of water. I wasn't told how HUNGRY I would be while nursing! I loved having fruit salads, yogurt, etc on hand. It helped a lot! ;)
5. House cleaning can wait. Don't stress about the small stuff. A baby is only a baby for so long, enjoy it. Don't overwork yourself trying to keep the house spotless, and laundry caught up!