When it comes to web-design, outside the box > outside the web.
Go outdoors with a camera and take snapshots of the imagery around you that interests you.
Take in an art/design show or three.
Spend some time in a public library soaking up the layouts from old books.
The best kind of inspiration comes from the things and places where you'd least expect to find it.
It all feeds into the imagination and that's what you need recharging.