The recommended amounts of diapers are based on washing every 2-3 days. You can purchase less and wash more often.
Prefolds or Flats and Covers
2-3 dozen prefolds
6 diaper covers
12 liners (optional, but saves diapers from staining and will help keep baby feeling dry)
12 cloth wipes (optional, but so easy to use and throw in the wash with the diapers)
12 doublers (depending on what AIOs you use and the needs of your baby)
All-in-Ones
2 dozen diapers if you use AIOs exclusively. If you want a few on hand for outings or other times when they would be convenient, then 3-4 would be fine.
12 liners (optional, but saves diapers from staining and if the diapers do not have fleece lining, these will help keep baby feeling dry)
12 cloth wipes (optional, but so easy to use and throw in the wash with the diapers)
12 doublers (depending on what AIOs you use and the needs of your baby)
Pocket Diapers and Inserts
2 dozen diapers if you plan on using pocket diapers exclusively. If you want a few on hand for outings or other times when they would be convenient, then 3-4 would be fine.
At least as many inserts as you have pocket diapers. Some inserts are more trim and you may need 2 for daytime and even more for nighttime use.
12 cloth wipes (optional, but so easy to use and throw in the wash with the diapers)
Fitted Diapers & Covers
2-3 dozen diapers
6 covers
12 liners (optional, but saves diapers from staining and if the diapers do not have fleece lining, these will help keep baby feeling dry)
12 cloth wipes (optional, but so easy to use and throw in the wash with the diapers)
12 doublers (depending on what AIOs you use and the needs of your baby)