Totally practical: surfing for the latest TV program with your laptop in the living room, sending e‑mails in the bedroom, listening to Internet radio in the kitchen … and all that without tangled cables and the risk of tripping. WLAN makes it possible – but certain precautions are indispensable if the rude awakening is to be avoided.
Source: FDPIC – WLAN – Wireless surfing not without pitfalls