WPA Security Timeout

I personally use WPA (WiFi Protected Access) security for my wireless network at home as opposed to WEP (Wired Equivalent Privacy) because of the enhanced security. For instance, unlike WEP which uses PSK (pre-shared key) for all of it clients, WPA utilizes TKIP (Temporal Key Integrity Protocol) which provide server / client mutual AuthN services and duplex layer dynamic key encryption.
That said – one of the benefits I like about using WPA, is the fact that I can set a timeout value for the key. For myself, I had it set to one day. That was too annoying because I will close my laptop and not use it for a day or so and the next time I open it up, I will be prompted to discover the wireless network and enter my key. I since changed it to a year, for now.