Every one is cutting the wires. You see this with how we have WiFi every where. It is in our laptop computers, desktop computers and especially in our cell phones or internet phones. You see less voice calling and more online tasks being completed using wireless internet (WiFi) connections.
In many cases our desktop computers or laptops with standard PCI or Mini PCI wireless cards do not provide a stable connection for the reason of low wireless reception. To increase the reception we use external antennas.
But we have an other option which is more versatile, that is having a Wireless USB Adapter in ones gadget kit. In short, by using an USB wireless adapter, you can have around 60% better performance over the built-in WiFi that you find in laptops and desktop.