We were recently talking to a customer who occasionally needs to access information in Highrise while he's offline. His solution: He exports all his data from Highrise every few weeks so he's got an offline backup on his hard drive.
Then he can access that information at any time, even if he's without net access. It's a handy tip for anyone who's found themselves offline and wanting to get info on a Highrise contact, note, etc.
Related Highrise FAQs:
Can I export notes, tasks, or cases from Highrise?
How do I export my contacts from Highrise?