Dump every day. Market order. As low as necessairy to sell all coins.

The fun is over, when there are only a few coins to mine. With the actual hashrate, we will soon have mined 75% of all coins.
Why not over 500? Because this coin is only fun and useless. Selling pressure is very high due to all the multipools. I would not advice to buy dogecoins with "big" coins like bitcoin or litecoin. Just use other fun coins.

If you have mined more than 200k, sell some % and keep the rest.