Want to go bigger still? After the blow-dry, try one of these bonus styling tricks. (You could even do two or three of them, but beware of going too big...yes, it is possible.)
Get On a Roll
Hot rollers give maximum lift for minimal effort, says Peter Espinosa, a stylist at Salon Shahin in Stamford, CT. His tip: Before putting the rollers in, part your hair in the opposite direction from the way you usually do. (You'll flip back to normal afterward, but initially fighting your hair's natural bent helps create fullness.) Then, roll hair in two-inch sections with large rollers, and leave them in until cool. Remove them, gently re-part your hair, and allow it to fall into place.
Try Infiniti by Conair Tourmaline Ceramic Hairsetter ($50, Wal-Mart; walmart.com). For all-day hold, do a final spritz with an aerosol hairspray ("A nonaerosol will make your hair wet, ruining the volume you've just created," Chiccine explains). Try Aussie Aussome Volume Hairspray ($3, drugstores).
No time to set your whole head? Take a section of hair from the top and put it in a large roller. You'll get subtle-but-noticeable volume at the crown, where it matters most.
Be a Tease
Back-combing adds tons of body in minutes. "You can tease just at the crown for a little bit of volume, or do your entire head," says Chiccine. Start by working a tiny bit of gel – try Pantene Pro-V Extra Fullness Gel ($4, drugstores) – into your roots once hair is dry.
Then, working from the front of your head to the back, take a two-to three-inch section of hair and hold it straight up in the air with one hand. With the other hand, back-comb by dragging a thin-toothed comb from halfway up your strands down to your scalp. This will create a cushion of hair at the base and leave the ends smooth. Continue teasing portions as needed to achieve your desired level of fullness. Finish with a shot of aerosol hairspray to the roots, and then arrange smooth, unteased sections over the back-combed areas.