At 1:1, the shaking is magnified just as much as the subject!

Don't forget that tripods aren't the only way to steady a camera.

You can place the camera on a solid surface like a table and use a cable release or the self-timer.

A "bean bag" can be a great camera support.

Even bracing the camera against a door jamb can really help.

A tripod is the most flexible option though.