Light duties.

When the final fermenting vessel to complete our set finally arrived at the brewery yesterday, we all looked forward to the long, hard slog of getting into place.
Though when our Jon, a genius of lateral thinking, suggested that we fill it with nitrous oxide gas, which is ten times lighter than helium, it suddenly became a one-man job.
In fact, it made such light work of it that once we'd popped it into place and let the gas out of it, we all fell about on the floor, laughing hysterically.

Hats off to you, Think Tank Jon!