Yes using a brush to create quick effects is CHEAP, but sometimes you'll need it.
Just use brushes wisely.
These little brushes are also from Blur's good brush (credit to: Xueguo Yang site) I wish I had more free time to translate the whole set to English.
Download the brush here: http://www.sendspace.com/file/chlddm
Again, switch to your "SMUDGE TOOL" to use these brushes!!!