Photoshop brushes are a great way to spice up any design work.  There are thousands of free Photoshop brush sets available on the web for free (check with the author’s disclaimer).   I suggest bookmarking some of these that you think you will use later.

1.  Floral Brushes 3

2.  Splatter Brushes

3.  Grunge Brushes Volume 1

4.  Grunge Texture Brushes

5.  Chancellors Splatter Brush Set

6.  Crack Brushes II by hawksmont

7.  Abstract Brushes Pack 1

8.  11 Free Crystal Brushes

9.  Smoke Brushes

10.  8 Sun Brushes

11.  Cartoon Sketch

12.  InkDrop

13.  Lotus Flower Photoshop Brush by retzwerx

14.  Photoshop Bubble Brush + PSD by DigitalPhenom

15.  Feather Brush

16.  Kanji Brushes

17.  Glitter Brushes

18.  Animal Prints Brushes

19.  Foliage Swirl Brushes

20.  50 Deadly Tron Grids

21.  Mateu7′s Watercolor Brushes

22.  40 Lightning Bolt Brushes

23.  17 Light Sparkles Brushes

24.  Smokey Fire Brushes

25.  Fractal Photoshop Brushes

26.  Cloud Brush Set 1

27. Hair Brushes for Photoshop

28.  Solid Tech Rings Brushes

29.  Moldy Paper Brushes

30.  25 High Resolution Photoshop Brushes

31.  WG Watercolor Brushes Volume 1

32.  Rope Brush

33.  Unreal Brushes V.4

34.  Galactic PSD Brushes

35.  42 Subtle brushes for Photoshop

36.  Hi-Res Clouds Brush Set

37.  Looney Toons Brushes

38.  Coffee Cup Stains Brushes

39.  Hi Res Colored Pencil Brushes

40.  3 Tribal Kittens Brushes

41.  Photoshop Sun Brushes

42.  Gradient Shapes Brushes

43.  Abstract Butterfly Brushes

44.  Dreamon Shape Brushes 2

45.  Extremely Abstract Brushes

46.  High Resolution Floral Brushes

47.  Grunge Brushes 007

48.  Handmade Doodle Brushes

49.  Party Photoshop Brushes

50.  Godspeed Photoshop Brushes

51.  Old Postage Stamp Brushes

52.  Funky Paisley Brushes

53.  Kinetic Brush Set

54.  The Grasslands Brushes

55.  Little Birdi Brushes

56.  Rising Sun Brushes

57.  Halftone Brushes

58.  Deco Flowers Photoshop Brushes

59.  Bubble Brush Set 1

60.  Lucky Bamboo

61.  Anigraphuse Curves I

62.  Retro Pin-up Girls

63.  Paint Trails Brushes

64.  11 Skin Brushes

65.  Grunge Worn Lines Vol.1

66.  Mountain Brushes

67.  Audio Lines Brushes

68.  Fortune Brushes

69.  Fake Glitter Brush Set

70.  Lego Brushes

71.  Brushes: 3D Doodles

72.  Metal Brush Set

73.  8 Fantasy Butterfly Brushes

74.  Suddenly Spring

75.  Free Floral Brushes

76.  Demolished Cracks 2

77.  Fabric Texture Brush Set

78.  Paper Edges Brush Set

79.  15 Wicked Wings

80.  Blood Marks Brushes

81.  Infinity Brush Set

82.  Vintage Hands Set

83.  Danger Close Brushes

84.  Plain Fabric Brush Set

85.  17 Vector Cloud Brushes

86.  Splatter Brush Set

87.  Snowflake Brush Set

88.  Skyline Brushes

89.  Old Essential Brushes

90.  Chinese Dragon Brushes

91.  Music Brushes

92.  Ribbon Brushes

93.  Retro Vector Brushes

94.  Tags Brush Set

95.  Large Polariod Brushes

96.  Crack Effect PSD Brushes

97.  Plunge – Ripple Effect

98.  Sketchbook Scribble Brush Set

99.  Kaleidoscope Brushes

100.  Halftone 2 Brushes

101.  Abstract Brush Set XIV