This post will be updated continuously with new functions
Get store data
Mage::app()->getStore();
Store Id
Mage::app()->getStore()->getStoreId();
Store code
Mage::app()->getStore()->getCode();
Website Id
Mage::app()->getStore()->getWebsiteId();
Store Name
Mage::app()->getStore()->getName();
Is Active
Mage::app()->getStore()->getIsActive();
Store Home Url
Mage::app()->getStore()->getHomeUrl();