Presuming we are talking about 802.11 wireless and not cellular based wireless...
The only way to use the same settings at two locations is to set the SSID (wireless site name), Encryption method (WEP, WPA/TSK etc) and key (password for encryption) the same at both locations, and have them both set to DHCP (very uncommon for this not to be the case) and I am not sure, but the channel (frequency) may have to be the same at both locations, but I don't think this is the case.
But, in most PC software you can create profiles. This allows for the storage of connection settings for multiple locations and would be an easier solution for most users as it would try to connect in the priority order you specify to which ever networks are available. So let's say you store the settings for Holiday Inn Dallas, everytime you stay at Holiday Inn Dallas your computer will connect automatically, assuming they don't change thier settings between visits.