Sprinting Dive Roll
This move gets essential when there are timed doors through which Lara has to dive or similar obstacles.
Since The Last Revelation (TR4) Lara can even perform a Dive Roll to Crouching Position (press the Crouch Button instead). Lara would then end up crouching after the roll, making it easier to get into crawlspaces quickly. (This move won't be needed in the normal games but in some Custom Levels. Careful in TR3 this won't work, Lara will stop the sprint sliding to a halt.)