Single NIC multiple configurations

[Michael Griffin]

I have a laptop with a single NIC which I use for both work and home. 
Obviously my network settings are different but I was wondering if I
could set it up so that the correct configuration would come up
depending upon which environment I was in.  I am not opposed to manually
bringing the network up or down in each, setting, I am just wondering
what would be a "best practice".

I was/am considering using aliasing (eth0:0, eth0:1), but I am not sure
how I would go about it.

All responses appreciated,

Thank you,

Michael