Magento Add product on home page

There are numerous ways to put products on your home page
New products on home page
{{block type="catalog/product_new" name="home.catalog.product.new" alias="product_homepage" template="catalog/product/new.phtml"}}
New products on home page through xml

<reference name="content">
    <block type="catalog/product_new" template="catalog/product/new.phtml">
        <action method="setProductsCount"><count>5</count></action>
        <action method="addColumnCountLayoutDepend"><layout>empty</layout><count>6</count></action>
        <action method="addColumnCountLayoutDepend"><layout>one_column</layout><count>5</count></action>
        <action method="addColumnCountLayoutDepend"><layout>two_columns_left</layout><count>4</count></action>
        <action method="addColumnCountLayoutDepend"><layout>two_columns_right</layout><count>4</count></action>
        <action method="addColumnCountLayoutDepend"><layout>three_columns</layout><count>3</count></action>
    </block>
</reference>

All products on home page
{{block type="catalog/product_list" name="home.catalog.product.list" alias="products_homepage" template="catalog/product/list.phtml"}}
All products from one categroy
{{block type="catalog/product_list" name="home.catalog.product.list" alias="products_homepage" category_id="4" template="catalog/product/list.phtml"}}