I've never had Blizzard cut , but I have done a few things myself.
Like the tufts behind her ears and under the flaps. I keep those shaved and trimmed well so air cirulation keeps the ear canal dry and free from possible infections. Of course, cleaning once a week helps too.
In the summer, I shave the inside of her back thighs, along the genital area and about 1/4 of the way up her belly. She loves this! She lays flat in the cool grass and just... well, you can see the pleasure in her eyes.
Other than that, it's all I do. Oh, and lot's of raking/combing/brushing. Matts are not allowed! I really, really dispise any kind of matting on my dog.
Oops, I forgot one other place I keep trimmed, but it's hidden and no one ever notices it. A tiny 1/2 inch square between the shoulder blades, but it's later covered up by the longer strands around her neck and shoulders. This is where I make sure her Front Line is applied to the skin and not caught up in the denser undercoat, only be in ineffective in protecting her from fleas and ticks.