This script list all containers in all storage accounts, in your Azure subscription. It is handy when looking for a container or a blob end point.

$accounts = Get-AzureStorageAccount
Foreach ($account in $accounts)
{
$sa = Get-AzureStorageAccount -StorageAccountName $account.storageAccountName
$saKey = Get-AzureStorageKey -StorageAccountName $sa.StorageAccountName
$ctx = New-AzureStorageContext -StorageAccountName $sa.StorageAccountName -StorageAccountKey $saKey.Primary
Get-AzureStorageContainer -Context $ctx
}