Vinegar and No-Poo

Does anyone remember This Post I did about how awful my hair has been since we moved into this house? To update you, I ended up cutting about eight inches off because I just could not handle the tangles. Since then, a great friend of mine sent me this link. (Thanks Alicia)
http://thepioneerwoman.com/homeandgarden/2009/04/this-might-just-save-my-hair/
You should read it if you love your hair. It says to use vinegar in your hair if you have really hard water. I don't do this all the time because I forget and I haven't put some in my shower, but I have done it several times recently.  When I use vinegar in my hair it makes a HUGE difference. My hair is so soft and smooth on those days. If you have hard water you should just try it. A little experiment for you. Try it and then comment and let us know if it worked for you.
I also ran across some stuff about people who don't use shampoo. Its the no-poo movement. Check it out Here. Has anyone out there actually done this? I'd love to hear about it. I'm a little scared to go that extreme.
Also something else I was wondering. Lets suppose you do use shampoo. I know you aren't supposed to wash your hair every day, but how often do actual people wash their hair? I have a hard time not washing my hair because of two things. I often have curly hair and so I have a bunch of gel in it. It is not pretty the next morning. I promise. Also, when I work out I get sweaty head. Yup, its just who I am.
Ok, I think I need to summarize what I am asking here.
Number 1-If you try or have tried using vinegar, I want to know how it went for you.
Number 2-Does anyone have experience with the no-poo thing and how did it go? (or is it going?)
Number 3-How often do you wash your hair and do you think I am right to wash mine all the time because of the aforementioned reasons?

Help My Hair!!!

For those of you who don't know, I just barely moved from Oregon to Virginia and I have encountered two problems with my hair. One problem I expected, the other I did not. Problem number one-I have naturally frizzy hair by nature. That combined with humidity and it is a bit of a disaster. Anyone have a frizz product that they swear by? It would be great to have something that works when my hair is curly and something that works when I want my hair to be straight. (Although, I might have to give that up for a while if I can't find anything to help.)
My second problem is the worst. I am used to getting out of the shower and running a pick easily through my wet hair. Its never tangled or knotted. It just easily slides down. Since I moved into this house, when I get out of the shower my hair is a tangled mess. It takes me ten minutes to comb through it, section by section. Its really awful and I am not sure why it is like that. My only guess is it has to be the water. I can't really figure out anything that could make that big of a difference. I am using the some conditioner I was using before I moved. I even bought a new bottle just to be sure. Does anyone have any idea what I can do for this or any idea of what could be causing this besides the water? If I can't fix it I might just buzz my head one day so please help!