Shipping lithium batteries?

Below are the requirements to ship lithium batteries using the USPS. UPS requires a "Dangerous Goods Contract". FedEx has limits and requirements based on capacity. So how have forum sellers shipped batteries or complete boards?

USPS Standards for Domestic Shipments Containing Lithium Batteries

• Each cell cannot contain more than 1 gram of lithium
• Each battery cannot contain more than 2 grams of lithium
• All packages must contain a complete return address
• For non-installed batteries, your package must have a DOT-approved lithium battery mark (UN3090)

Standards for Shipping Installed Batteries

• Installed batteries must be protected from short circuit
• Devices with batteries must have protection to prevent accidentally being powered-on
• Equipment must be cushioned