I died my hair blonde:) and my roots grew out :( so I re-did it and repeated the process of cleaning up my roots a few times. Now I want to get back to my old color with out having a nasty line where my roots start and the color stops. Any body know how to remove blonde hair dye without just dying brown over it?

There are products that strip out colour but this VERY damaging for the hair, I strongly recommend you not to use these. The only thing you can do is dye it a colour which is nearest your natural color, but make sure you choose a brown which has a tinge of red/ mahogony as using just brown over blonde will turn your hair green.

Please do not apply another at-home-boxed color on your hair. If you've read some of my advice on the forum, then you would know that applying a brown hair color on bleach blonde hair can result in a green cast. If you want to go back to your natural color, you will need to do a tint-back. A tint-back is when a hairstylist attempts to match your natural hair as close as possible. You should consider getting it professionally done because you may end up with an unpleasant shade if you try to do it yourself.