[klenwell]

I use the API to send myself a daily email with a combination of random and anniversary bookmarks:

https://github.com/klenwell/pinprick

I find it a good way to keep in touch with past bookmarks and do some light maintenance.

[AareyBaba]

Maciej has a 'random' bookmarklet you can drag to your browser toolbar. See https://pinboard.in/howto/