In fact any image editing tools, does not have to be Photoshop. I am just interested in what is the main purpose you use them.
Here are the features I use the most:
Red eye reduction.
Colour and brightness balance (I just use auto balance, usually it's good enough)
Stamp and clone to get rid of unwanted pixels (eg, coffee staines on the table clothes or shirt, blemish for portraits) in fact what's the best way to achieve this?
I mostly use:
Red eye reduction
Patch tool
Spot healing brush
Stamd and clone
Save As
Color picker
Layer Window
??
I'm surprised this thread even exists. It's like asking which letter of the alphabet I use most.
red eye reductuion
patch tool
adjust image size
smudge tool
cut tool
and lots of layers
Colour and brightness balance
Curve and Level (same as Color and brightness but more grain control , also for color correction)
Stamp and clone
Hue and Saturation ( for color correction)
Auto levels.......shift+ctrl+L
Auto contrast.....shift+ctrl+alt+L
Auto colour.........Shift+ctrl+B
Crop
Lens correction
Healing brush
Unsharp mask
Image size......Alt+I+I
Save for web
All, I like photoshop, I use it to design my home photo.
Renders -> Clouds...
lol, i like to use brushes lol
I am a Photoshop Starter =)
But i also use it to make GIFs...
toolbox => Selections (heavy usage), Line, Brush, Pencil
File>Save As
Filters (Almost all)
Layer effects => Outer glow, inner glow, gradient overlay etc.
Layer palette
The color selector (not the one from the swatches pallette.. that's something i never use 
)
