Add the below code in footer.php and it worked for me :
<div class="buttons" style="margin-top: 12%; float:right; position: relative; ">
<a href="http://sanchibags.com/index.php/cart/" title="Goto Cart" class="btn btn-primary btn-lg" style="position: fixed; right: 0; bottom: 0;">
<i class="fa fa-shopping-cart"></i> Goto Cart</a>