Opaque blush is too much for hot weather. A fresher way to go: lightweight gel and cream formulas that let your skin's texture show through.
One of Team Bella's recent finds is Sonia Kashuk super-sheer liquid tint ($9.99 at Target), which leave a pretty, light stain on cheeks and lips. CoverGirl Simply Ageless sculpting blush has antioxidant-rich Olay Regenerist serum in it to fight signs of aging, but we like the way it subtly reflects light on skin of all ages. (It officially retails for $12.99, but I've always seen it for less than $10.)