Hmmm...here in Canada, it's always called a "sail plan". I file one on occasion with the Canadian Coast Guard over the VHF in the mornings, with a generous estimation of where I expect to be that evening. The challenge is to remember to "close the sail plan" via phone or VHF when you actually get there.
Frankly, I only do it when I expect to be both out of cell phone range, with children aboard and in stinky weather. I was in stinky weather last week, but was only going eight NM to windward about a mile offshore across the Toronto waterfront, and so no plan. There were a lot of heavy-weather fans within visual range at all times.
I have been utterly alone on the lake, however, in mid-October, which can get squally, and that is when I am more likely to alert the CCG of my movements. Frankly, I suspect they are a little bored by that point and I like to keep 'em busy!