Simple Cart addon
Simple Cart enable a simple shopping cart based on your existing Entries. Simply add your entries to the Simple Cart by the powerfull sets of tags. No fancy FieldType (use the native custom field to set the price), no order management, no payment providera, no settings, just a couple of powerfull cart tags to do the task.
Support the following features
Cart functionality, TAX functionality, Add dynamic prices for your products. This can be based on your own custom fields, Custom cart options