Some people do not like grids that extend entirely through a model. I usually hear about this in building elevations. They want the grids to stop just above the model. That is easy to do when we toggle from 3D to 2D. We can drag the 2D extent of the grid above the building. If we turn on the crop boundary of the view and make sure it intersects the grids we can drag them all together faster than doing it one at time.
Some want similar behavior in plan views too. We can do the same thing unless they also want the grids to appear on both sides of the model. In this case we can use the Center Segment parameter that is part of grid types. The stock Revit templates provide three grid types: 1/4" Bubble, 1/4" Bubble Custom Gap, and 1/4" Bubble Gap. They look like this.
If we want to stop the grid from traveling all the way through a model we can use the 1/4" Bubble Gap type. The gap is created with the Center Segment parameter by using None instead of Continuous or Custom. Choosing Custom enables (turns on) three new parameters: Center Segment Weight, Center Segment Color and Center Segment Pattern (a Line Pattern).
People also ask to be able to adjust this gap differently in different plan views. At first it doesn't seem possible because adjusting one does affect other views, until you toggle the 3D status to 2D. Once the grid is using the 2D mode we can alter the gap differently in that view when compared with other views. This gap does affect elevations and sections. This means you'll have to adjust the extents of the gap in those views too, especially if you don't want the gap to show up in those views at all.
It's like Spiderman's Uncle said, "...with great power comes great responsibility". The more subtle features we engage the more work it is to manage them.
By the way, this isn't possible with Levels. There is no Center Segment parameter. There are occasions where it would be helpful if we could do this for Levels too.