Handle with care.
Thin hair is delicate, so treat it as gently as you can. To avoid unnecessary tugging, try detangling while you're still in the shower. Apply conditioner to wet hair, then use a wide tooth comb to carefully detangle any knots, working from the ends up.
Focus on the ends.
Applying too much conditioner on the top of your hair can weigh it down, so focus the application from the mid-section to the ends.
For added fullness — not frizz — try blotting hair dry with an absorbent old T-shirt rather than rubbing it with a rougher towel. T-shirts are gentler on hair because they don't have the grooves that towels do. Also they will only absorb the excess water, as opposed to all the moisture from your hair. That moisture is needed to help hair look its best.
Rise to the occasion.
Use your fingers to lift your roots up and away from your scalp as you blow-dry. Since hair stays where it dries, this technique will help create both height and the appearance of fullness.
When you wear a ponytail or bun, steer clear of tight elastics which can cause breakage. Look for 'safe grip' versions and wear them loose enough that you can slip them on and off without breaking your hair.