Magento How to get the customer login, logout, register and checkout urls

login url
echo Mage::getUrl('customer/account/login'); 

logout url
echo Mage::getUrl('customer/account/logout'); 

My Account url
echo Mage::getUrl('customer/account'); 

Register url
echo Mage::getUrl('customer/account/create'); 

Checkout url
echo Mage::getUrl('checkout/cart');