- AFAIK – As Far As I Know
- BIN – Buy It Now
- BNIB – Brand New In Box
- BNWT – Brand New With Tags
- BOGOF – Buy One Get One Free
- COA – Certificate of Authenticity
- DH – Dear Husband
- DD – Dear Daughter
- FOC – Free of Charge
- FWIW – For What Its Worth
- GBP – Great Britain Pounds
- GWP – Gift With Purchase
- IIRC – If I Recall Correctly
- IMHO – In My Humble Opinion
- ISO – In Search Of
- MIB – Mint In Box
- MO – Money Order
- MOP – Method Of Payment
- MNB – Mint No Box
- NOS – New Old Stock
- NPB – Non Paying Bidder
- NWT – New With Tags
- OOAK – One Of A Kind
- OOS – Out Of Stock
- OOP – Out of Production/Print
- OP – Original Poster
- PP – Paypal
- UPS – United Parcel Service Shipping
- USD – US Dollars
- USPS – United States Postal Service shipping
- w/ – With
And for Filofax users:
- WOTP – Week on Two Pages
- PPD – Page Per Day
- 2PPD – 2 Pages Per Day
And Midori Users:
- PP – Passport Size
- TN – Traveler’s Notebook
And one for hoarders and collectors of all kinds:
- SABLE – Stash Acquisition Beyond Life Expectancy