• In much the same way that Surfed is a standalone app that exists as a layer above another app's useful-but-unnavigable dataset (Safari's search history), a standalone app that exists as a layer to search and navigate through your terminal history.
• a Stripe-specific blog/content gallery.
• Turn the fact that you can render .docs in an iframe into a very specific, niche tool.
• A prettier, more ergonomic version of Google's DIG tool.
• A non-shitty version of Linkscout.
• A pleasant frontend for Quickbooks' transaction reconciliation interface. Rather than try and dethrone Quickbooks, I think it would be better to enrich it.