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A stock control computer system includes a memory for storing a current stock list based on product codes. An electronic version of a store purchase receipt, including product codes for the items purchased, is sent from the store to the customer's home computer where it is used to update the current

A stock control computer system includes a memory for storing a current stock list based on product codes. An electronic version of a store purchase receipt, including product codes for the items purchased, is sent from the store to the customer's home computer where it is used to update the current stock list by addition of products purchased. Items are deleted from the current stock list as they are disposed of by the customer, in response to an electronic indication of the corresponding product codes produced, for example, by scanning product packaging with a bar code scanner. When the customer initiates a home stock check, the current stock list is compared with a predetermined stock level and an indication of which items need replacement is produced. This indication may be displayed, printed or transmitted electronically to the store. The electronic purchase receipt may also be used to generate and update a correlation between product codes, such as bar codes, and product descriptions, this correlation also being stored in memory.

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A stock control computer system includes a memory for storing a current stock list based on product codes. An electronic version of a store purchase receipt, including product codes for the items purchased, is sent from the store to the customer's home computer where it is used to update the current

A stock control computer system includes a memory for storing a current stock list based on product codes. An electronic version of a store purchase receipt, including product codes for the items purchased, is sent from the store to the customer's home computer where it is used to update the current stock list by addition of products purchased. Items are deleted from the current stock list as they are disposed of by the customer, in response to an electronic indication of the corresponding product codes produced, for example, by scanning product packaging with a bar code scanner. When the customer initiates a home stock check, the current stock list is compared with a predetermined stock level and an indication of which items need replacement is produced. This indication may be displayed, printed or transmitted electronically to the store. The electronic purchase receipt may also be used to generate and update a correlation between product codes, such as bar codes, and product descriptions, this correlation also being stored in memory. A telephone calling card or debit card is formed as a planar card member having front and rear surfaces. A scratch-off label strip is adhered to one of the surfaces and includes an opaque label strip applied onto the surface of the card. A PIN code is applied onto the opaque label strip. A scratch-off layer is applied over the opaque label strip and over the PIN code to obscure from viewing the PIN code. The scratch-off layer can be included on a second label strip applied onto the opaque label strip for covering at least the PIN code.