Frequent overtaking and lane-changing to avoid a queue or attempts at pushing up the speed of traffic ahead is both irresponsible, risky and in most cases illegal.

It is prohibited to use the public transport lane (unless you are driving an electric car).

Following alternative routes can save you time as long as you have a decent knowledge of the 'local traffic flow'.

Avoiding busy time slots can be beneficial if you do not have a fixed-time appointment to get to.