Rulers!

Although the status bar of the SolidWorks drawing mode always displays the X and Y coordinates of the location of the mouse cursor on the drawing sheet, sometimes the visual aid of a sheet ruler may provide additional help. 

SolidWorks drawing mode rules can be turned on at View pulldown>Rulers.

Once turned on, the rulers appear at the top and left edges of the drawing window.

The rulers also enhance the usefulness and feedback when the Grid is displayed. This is because the rulers provide constant confirmation as to the mouse cursor’s drawing location on the screen, no manner how far in the zoom level.

This makes keeping track of one’s position on the drawing sheet more intuitive, especially during sketching and using snap-to-grip functionality.

Control over various aspects of snapping and grid are available in Tools pulldown>Options…>Document Properties>Grid/Snap. 

Changes to grid increments are reflected in the rulers.