Hello Mom on the go, I have 3 children, 2 girls and 1 boy, and they are about 5 years apart in age, well what I did when I had my last, shes 1 now, is I didnt throw the bottles away because there was nothing wrong with them, instead I just brought new nipples for the bottles and as for the sippy cups I ended up buying new plastic things for the inside part of the cup. Back then the bottles and sippy cups were'nt as expensive as they are now and if nothing is wrong with them then use them. Now I did sterilize them before I used them and you can do that by just boiling them in a clean pot of water, now I never used a pacifire but I would imagine that you can do the same thing? Well I hope I helped you on your decision, Congrat's and good luck!