Thanks for that excellent tip. I'm going to give this simple idea a try.

I just came back from a trip where I took many low light shots and used lamp posts, light poles, rockwalls & bar stools to steady, since I didn't have or want a tripod. I did this despite a harrowing experience in NZ a few years ago, when I went to steady myself on a fence post -- and it was electrified. Had me dancing.

The video said to use a 1/4" coarse thread bolt to screw into the camera, but never said what size fender washer that was (just kidding.) I'll post a review, and at what shutter speed it stays steady with an IS lens.