Actively maintained

Integrates the profile module with Ubercart.

A simple shopping cart for sites that need to take orders for free, physical (i.e. -- non-downloadable) products.

FAQ

Can you add a payment method?

No, sorry. It's freeCommerce. It always will be.

Couldn't I just use something like Drupal Commerce for this?

Probably. Commerce – let there be no confusion – is a great module. But it's also large (~ 500KB zip) and complex; it leans on other modules; it's more tightly integrated with the node system. If you know you are never going to be taking payments, this is a lightweight, flexible, and loosely-coupled alternative.

Or webform?

Webform is another module that's packed with awesome. If it works for you, that's great. The freeCommerce module allows you to add nodes to a shopping cart and then check out with one simple order form. Of course, the order form is not nearly as flexible or customizable as a webform form, but, again, you have the shopping cart functionality.

Is this really needed? Are people giving stuff away for free?

This module helps users to merge together duplicate accounts. It uses a hook system so other modules can do whatever they need to manage their relationships to users.

This module provides an auto-increment (serial) field.

Unlike Drupal's built-in auto-increment node ID, which is global and shared by nodes belonging to all content types, serial fields are managed per content type (D6) / entity (D7). For example, the serial field of an Invoice instance will generate a unique sequential number (starting at 1, then 2, etc.) exclusively for Invoice instances.

The allocation of serial numbers by this module is atomic. In other words, the serial values are unique even when multiple instances of the same content type / entity are created simultaneously.

This module creates a shell script that acts as a plugin for the munin monitoring tool.