Heat styling

I've been finding myself straightening my hair more often than usual. Since I never use heat to style my hair normally, I've been using a ton of heat protectant just to keep my hair in that condition.

I run about a quarter-size amount of Kérastase Nectar Thermique through my hair (or the Lait Nutri-Sculpt depending on my mood), put a little but of Lush R& B at the ends to moisturize, put in some Kérastase Oléo-Relax for anti-frizz, and then blow dry. After, I'll spray some S factor Flat Iron Shine Spray into my hands and then rub that into my hair, straighten, and after that add another pump of my Oléo-Relax.

Lost the cap... hee hee

It's all kept my hair pretty healthy. The last two products smell great as well. The only reason I wouldn't repurchase the Nectar Thermique is because I think it smells like an old lady, but other than that, it's a fantastic product. On that note, I don't know if I could really repurchase any of these just because of the prices...

Can anyone suggest a heat protectant/anti-frizz combo (that's cheap)? I really want to get my hair routine down to one product.