You can also build cylinders with 32 sides, but that'll give about as much fun a switching off 'snap to grid'.
Never do that, as points that are not on the grid will be put onto it by the compiler, which will result in very strange objects.
Find your optimal grid size to work on - 4 is alright - and stick to that grid. For small detail go down to a gridsize of 1, but never have any vertices not on the smallest grid.