I recommend the Daiso hemp pulp green tea blotting paper.

I recommend the green tea oil blotting paper available at Daiso for 1,000 won for a pack of 50! Using the blotting paper when your face starts to get a little oily in the afternoon keeps it looking clean. I make sure to use it especially on my forehead, as it tends to get a bit greasy there. Gently pressing the paper all over your face before touch-ups removes excess oil and smooths out your complexion, making touch-ups much easier. I definitely make sure to use it during the hot summer! I highly recommend giving it a try!!