How to remove the Discount Code / Coupon Code box in Magento My cart page?

Solution 1:

Edit your theme's "/layout/checkout.xml" file. Find and Comment the below lines.

Solution 2:

Add new local.xml file under your theme's layout folder.

Here, You no need to search for any template or layout file. This code will do the trick. After making changes dont forget to refresh the cache. That's it. You are done.

How to remove the Estimate Shipping and Tax box in Magento My cart page?

Solution 1:

Edit your theme's "/layout/checkout.xml" file. Find and Comment the below lines.

Solution 2:

Add new "local.xml" file under your theme's layout folder.

Here, You no need to search for any template or layout file. This code will do the trick. After making changes dont forget to refresh the cache. That's it. You are done.

How to remove a block from just one page cart, cms or product page?

For page specific layout updates, either you can use backend layout updates sections(category, product, cms pages) or the following code in the "app/etc/local.xml"

for instance, use this code to remove the sidebar cart from the product view page.

Configurable products options are empty after moving my cart side bar to header?

I have explained Moving Cart from Right Sidebar to Header in this tutorial. After moving my cart to header I have noticed configurable options are not shown up in header. To display configurable product options do the following.

Edit your "template/checkout/cart/sidebar/default.phtml" file.
Find the line if ($_options = $this->getOptionList()):

Replace with the following

$_product = Mage::getModel('catalog/product')->load($this->getProduct()->getId());
$config = new Mage_Catalog_Helper_Product_Configuration();  
if ($_options = $config->getConfigurableOptions($_item)): 

Thats it. You are done.