What teens want Snapchat to spend its Wall Street fortune on

Snapchat rocked Wall Street last week with a filing for its initial public offering that revealed tons of detail about the secretive company.  But for most of the app's users, it was just a regular day on Snapchat.  That's just fine by Snap Inc. — the name for the company behind Snapchat — which doesn't want its users to worry about things like "going public" or its Wall Street name $SNAP.  "You can search Snapchat or Spectacles for the fun stuff and leave Snap Inc. fo