generate scaffold cart
get current cart or create new one
generate scaffold line_item
wire up cart product and line items
display add to cart button
get current time in view
home link is home link
add to cart adds to cart and redirects to cart page
display line items in cart view
store in session and display how many times user accessed index page
display counter with pluralize helper
reset counter when product is added to cart
display counter only if its greater than 5