I hope that post was meant to be sarcastic.
On 2.4G use channel 13 if you can as it takes the WIFI off the Radar for older hardware.
Sure, as the bad guys are known to go wardriving using ten-year old laptops.
Add spaces to the key (I believe this extends time to dictionary brute force but is easy to remember).
If you have a key so simple that a space adds to the entrophy, better leave your network open. OTOH, if you see a van parking in front of your house and hear hysterical laughter coming from it, you know your network has just been pwned.