I sometimes shop on Japanese webstores for CDs and merch. Many of these sites are actually where natives buy stuff, so few to no translations are available there. It's a routine for me to copy the Japanese on the nav bar to a translator, then get a list like "Cart <tab> Orders <tab> Account <tab> Help".
Another example for buttons. Assuming I don't speak Chinese, how could I know what "下单" and "返回" mean without copy-pasting them into a translator?