Event to track quote changes in magento
<p>I want an observer to track changes in Quote like when removing products, updating, adding product from frontend and backend as well. This observer should run after magento native code.</p>

<p>There are many events like below which are executed during quote but I am not sure which observer will be fit for my requirement--</p>

<p><strong>sales_quote_remove_item</strong></p>

<p><strong>sales_quote_add_item</strong></p>

<p><strong>sales_quote_product_add_after</strong></p>

<p><strong>sales_quote_item_collection_products_after_load</strong></p>

<p><strong>checkout_cart_add_product_complete</strong></p>

<p><strong>checkout_cart_save_before</strong></p>

<p><strong>checkout_cart_save_after</strong>
etc...</p>