Please help, pretty please!

Okay, here is my situation. My hair is pretty short, above shoulder length, the color is naturally medium to darkish brown, and I usually get it highlighted at the salon. I get a partial weave of 3 colors, a dark blonde, lighter blonde, and a light light wheatish blonde, the effect is very pretty. Unfortunately my hairdresser is 2 hours away and very expensive, I`m currently pretty broke and haven`t gotten my hair colored in quite a while (the last time was the end of September!)
Needless to say, my roots are about 4 inches long and look terrible. I am going to a fancy New Year`s Eve party and don`t want my hair looking like this. I thought of going to a local salon, but I really don`t want to take the chance on a colorist I don`t know messing me up really bad.
So....any drugstore remedy I can do for this until I can get to my salon (next month!)? I thought maybe a color depositing shampoo, or something...I just want something non-permanent to help the blonde blend in with the roots a bit better until I can get to my colorist.
Any ideas would be greatly appreciated.
Thank you!!!!

Callie

The longer you wait the more it is going to cost you.
And don`t mess around with your hair.
There is no temporary remedy for overgrown highlightened hair.(highlights are a form of commitment to your hair,your hairstylist,and to yourself).
IF YOU RANNED OUT OF MONEY AND WILL NOT BE ABLE TO CONTINUE(just go natural)


Just trust me on this one