Give us a gym daily streak. Knock out six pokemon, the equivalent of one gym, and then you get 25 coins and 1000 stardust. On the 7th day, give us 50 coins and 5000 stardust. The coins would ignore the cap and the stardust would be to give us some more options for stardust.
Just an idea I thought of since I noticed that gym stagnation is back in force in my area.