chipperAs a courtesy and to avoid accidental duplications when I go back to a site to order something new, I clear out my shopping cart after I print it.
At Academic Superstore, this produces the following page:
# Your cart is empty and sad.
# To fill it with wonderfulness, search for items below.
# When you find something of interest, click [add to cart button]
# [search boxes and stuff]
For some reason, I am finding this particularly amusing today.