DIY Hair Colouring

Last Tuesday when I was in Kamloops I stopped by Sally Beauty and picked up everything I need to colour my own hair. I've been talking about doing this for some time, especially since my DIY eye brow waxing has been so successful.
I stopped at Chatters first (it was closer to one of my other errands) but they don't sell hair colouring products, presumeably because there is a salon attached to the store...
The lady at Sally Beauty spent quite a bit of time with me explaining what I needed and how the process worked. I chose the two colours that were closest to what my hair colour is now, which actually mimics the colour of my hair BEFORE the grey set in. We were getting confused about the highlight colour (a blonde) because the saleslady kept talking about it being a two part process and I don't think Crystie (the lady who, before now, has been doing my hair) has ever messed around with the blonde colour any differently. I'm goning to read the packages I've got and perhaps get the blonde colour next time I'm in.
I've enlisted a friend to help me (it's that or get Chris to do it!) and although I think she is worried about wrecking my hair, I'm pretty optimistic it will go well. And, in the end, it's just hair!

To get all the equipment, foils, and the two colours, cost me $51 taxes in. I figure there's 4-5 applications in the tubes, so as long as I don't have to creep back to Crystie for repair work, it should be a great savings.