Apparently a PR every two weeks is entirely achieveable

"We're going for a deadlift record today," my trainer told me when I arrived at the gym today.

I thought, "We just set a deadlift record two weeks ago, but this is the hour during which I pay you to tell me what to do, so let's do it."

So, we started with a warmup set at 115lbs, and worked our way up. And we set a record twice: I did 3 reps at 165lbs, and then a single at 170lbs.

I have no idea how my trainer knew that I had that extra 10lbs in me today, but that is why I have a trainer.