If you are looking to store additional information that doesn't fit into one of the existing record types (account, contact, etc...) you can crate your own and define fields under:
Settings -> Customizations -> Customize the System
Entities -> New
If you are looking to store additional information that doesn't fit into one of the existing record types (account, contact, etc...) you can crate your own and define fields under:
Settings -> Customizations -> Customize the System
Entities -> New