When drawing a schematic, crossing wires can make the schematic difficult to read and follow signals (see example, Figure 1). This tutorial shows several techniques for keeping your schematic tidy.
When drawing a circuit, you will often move and delete components as part of the process, meaning that the reference designators (e.g., R1, C1, U1) may be out of order or scattered throughout your design. This tutorial walks through how to reset the reference designators so they are sequential.
You can use VCC (power) and GND (ground) symbols to connect power and ground instead of manually routing wires across your schematic. This is a common technique used by professional engineers to improve the readability of schematics.