"The other adjustment methods may be beyond most folks. "
Adjustment methods? What setting a channel or not to be mixed or what security method used be it WPA2 AES or tkip+aes, etc.
These settings are simple drop downs in your wireless routers. You do not need to be a Network Engineer for any of these things.
And I am quite sure plenty of people willing to walk even the lay of the layman through any questions they might have.
Leaving your wifi on all the time is some weird advice. That like saying I should leave my car running 24/7 because not sure it will start tmrw
More than happy to help explain question(s) you might have about wireless networking. But basic understanding should be a must for anyone running one. If you own the wireless router in your home, then you should be able to log into it and make some simple changes - or atleast understand what the different settings mean
edit: especially if your having issues with yours