Yellow spreads in my garden at an alarming rate

It seems yellow is a theme that can't be stopped in my out door space right now.  The yellow poppies have arrived in my east border.  I also received an outdoor toss cushion for my birthday with a mod yellow pattern.  Then I scored another free outdoor chair left at the end of a neighbours driveway.  It was a rattan style chair that I washed and sprayed a bright yellow which perked it up considerably.

Now if anyone has an organic solution to rid my grass of buttercups please let me know!  For now I'll try and appreciate them as another yellow addition to my yard.