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Theres this thing called a "faucet", which will just give you crypto coins by simply clicking a few buttons. These sites are connected to coinpot.co which wil let you freely transfer between the five supported coins, and send them to your wallet(s).
The five coinpot-related sites are:
-moonbit: http://moonbit.co.in/?ref=5e8a22df580e
-moondoge: http://moondoge.co.in/?ref=efc99280ba9a
-moonlite: http://moonliteco.in/?ref=e38e5da1eca6
-moondash: http://moondash.co.in/?ref=B2481D1209D2
-moonbch: http://moonb.ch/?ref=A107F32E65D6

To use these, you first make an account on coinpot.co, then log into the moon faucets with your coinpot account, and click "claim now". Then the claimed amount will be sent to your coinpot wallet. The longer you wait the more you will be able to claim.

To be clear though, you wont make a bunch of money for free, but you'll make some, and its always fun to have some DOGE.

If this wasnt clear enough, and theres demand for it, then I might create a proper guide/tutorial for this tomorrow.

EDIT: also, be sure to check the dogecoin subreddit over at reddit.com/r/dogecoin