I'm trying to get a firm grasp of how each shipping module works. Can anyone lead me to a single thread or tutorial that goes over each module, one by one, explaining the situation you'd want it. Some of them are self explanatory but others, not so much.
- Flat Rate - one rate for whole store?
- Free Shipping - self-explanatory
- Per Item - ?
- Per Unit - ?
- Store Pickup - self-explanatory
- Table Rate - ?
- United Parcel Service - do you need UPS account?
- United States Postal Service - do you need USPS account?
- Zone Rates - ?




