Always keep your frame protected by putting them in storage case that you usually get along with your order. Lenses could easily get dusty if you don’t store them somewhere secured. Also, try to keep them stored at bedtime, as small particles in air amass on it.

Always store your frame in a clean case, and leave it on counter or a table with the lenses facing down. Place your glasses upside down if you don't have a case available, with the arms open somewhere secured.