A Service Design Principle to help people get up to speed quicker

When I open the e-banking service of the Raiffeisen Bank here in Switzerland, it does something really smart. It shows me which are the new transactions that happened on my bank account since the last time I logged in.

This idea of showing what's new since the last time I visited is something that could be stolen and implemented in many other services. 

Other services instead show you the last document, task or element you opened since the last time you visited the service. This also can be a great little help to help people get right back into what they were looking for.

Action question

How can you help people get up to speed quicker when they come back to your service? How can you differentiate what they might have already seen from what's new and needs their attention?

Daniele's note

This is a first draft of a principle that might end up in a book of the "Service Design Principles" series.