I often do my highlights at home myself… the price, even at the most cost efficient salon (that is still good at obtaining a beautiful blonde) is painful for me to try to justify to myself. Now that the majority of my hair is blonde, paying the same (full) price for highlights when it is really just root touch up and a slight bleach wash to brighten the color is a harsh pill to swallow. I used to go back before I figured out how to learn to do it on my own (youtube), and I would stretch out my salon visits to 2x per year, and for $60 each visit, this came out to only $10 per month to maintain great hair (but then you add the tip, and I always tipped really well since the dye and processing – for them – took 4-5 hours – which was ridiculous). I can manage to do my own hair now in about an hour max (or two 30 minute sessions in two days). The roots get a little strawberry blondish the first couple of days, but using a purple shampoo gradually removes that hue to a more natural, subtle blonde.
By far, the most effective method is to do gradual, simple highlights using a Frosting Kit (I use Clairol Frost and Tip – Nice & Easy), and getting used to using a cap which creates the best highlighted look if you’re a beginner. This is also the best method for not getting any orange hue since the sections are so small and spread out due to the cap, and works even for darker hair.
If you do manage to have a horrible bright orange experience, it is simply because your hair has not processed enough to achieve a greater lightness. Doing a double process (bleaching again) is risky but doable if you have healthy, strong hair. Double process (bleach again), it will be a strange yellow or even baby yellow if left on long enough, and then use a toner or simple Champagne blonde/Ash blonde, Natural or Dark color over to come out with a toned down hue.