Trellis Netting

So let's talk about trellis netting. I saw a video the other day where the grower had more or less draped a trellis net over his plants opposed to building a frame and mounting the net. Has anyone else tried this? I think im going to need something to support my outdoor plants. They're growing in pots and I want to keep them mobile asitss starting to get cold here in northern Canada and they'll be sleeping in the garage soon.