A note on wireless

I've been noticing a lag in my internet lately at home. This made me decide to check up on my wireless card to make sure it wasn't going bad. It would appear that AT&T had installed a new router in someone's home close to mine. However their configuration was interfering with mine. They had channel 6 while I have been using five for quite a while. Now to some of you this may seem like no big problem since they are two different channels. This is a problem since they are so close that they interfere with one another. Much like when you hear someone's phone conversation while you are one the phone with someone else. Most home phones today do a search to find a clear channel to use each time you hit talk.
Basically all I did was change the channel I was using so that the two would no longer interfere. More than likely the other person will notice an improvement but not know how or why it got better.