FAQ: What are the JDI (Just Do It) features in Photoshop?

Question

What are JDI features?  They're "Just Do It" features: small features that don't take a lot of time to implement or test and seem like an obvious improvement.
JDI list for Photoshop CC
JDI features in Photoshop CS6, by category:
Automation
Contact Sheet II has been restored as an Automate option
PDF Presentation and Layer Comps to PDF have been restored as Automate options
Brushes
Add ability to record brush strokes in actions with "Allow Tool Recording" option
Brightness/contrast slider for textures when painting
Brush projection for static tips
Brush tip cursor reflects brush pose and jitter for round and captured tips
HUD brush resize and hardness can now change opacity - [Control] + [Option] + click drag up/down with General>Preferences> "Vary Round Brush Hardness based on HUD vertical movement" unchecked
Increase maximum brush size to 5000px
Change color dynamics to per stroke instead of per tip (user option for old behavior)
Channels
Enable Split Channels for documents with single layer (so you can split simple transparency)
Color Picker
allow clipboard paste into hex field with # in contents (i.e. #aabbcc), or 0x (i.e. 0xAABBCC)
allow shortcut hex values (i.e. #123)
Eyedropper
Add ignore adjustment layers options bar item for the eyedropper
New mode for eyedropper to select layers current and below
Show the sample size popup for the various eyedropper tools (black point, white point, etc.)
File Formats
Allow for reading more bit depths in TIFF files
Give the user choices regarding how they want transparency treated in OpenEXR on file open and save
Read BIGTIFF format (TIFF files over 4 Gig)
Read common stereo image pair formats (JPS, MPO, PNS)
GPU
Increased GPU stability by prequalifying GPUs on the fly before use
Grammar
Grammar policed throughout app
Use consistent grammar style in the title of dialog windows (no commands such as "Choose a color:")
Image Resizing
Auto-select the best resample method based on the type of resize (bicubic-automatic)
Importing
(Macintosh only) Import images from devices provides ImageKit scanning and camera acquisition support
Layers
Add bicubic sharper & bicubic smoother options when free transforming layers (menu in options bar)
Add dither options to Layer Styles for Gradient Overlay and Gradient Stroke
Allow 00 or Shift 00 to work when setting layer/fill opacity (previously no way to get 0%)
Allow changing color labels on multiple layers at once
Allow changing of blend modes for multiple layers at once
Allow locking of multiple selected layers
CMD+J to duplicate selected layers and layer groups (in addition to layers)
Layer tooltips to include layer name (if defined)
New command to rasterize layer effect into layer, merging the selected layers into themselves (Rasterize Layer Style)
Opt+click on toggle arrows (groups and effects)in layer panel should close all targets
Reorder effects in the layers palette to match the Z-order style/blend mode (bottom most effects in terms of blending order, drop shadow is below the other effects)
Show blend if/Blending Effects badge on layer if they are not default values
Show correct opacity and blend mode values for hidden layers
Tab goes to next layer on inline layer rename, SHIFT + TAB goes to previous
When creating a shape layer, the layer name should not be like "Shape 1" but instead reflect the tool named such as "Rectangle 1"
Liquify
Add option to load last mesh
Increase maximum Liquify brush size to 15,000
Resize Liquify brush with shortcuts: bracket keys [ ] now match same increments in Photoshop
ctrl (win) / cmd (mac) switches to magnifying glass
alt + right click + drag to change brush size (win)
ctrl + alt + left click + drag  to change brush size (mac)
Masks
Enable Invert and Threshold adjustments for masks in 32-bit/channel
Plugins
Hold SHIFT during startup to disable Optional and 3rd party plugins
Presets
Add New Document presets for common devices (e.g. iPhone, iPad, etc.)
Add new Gradient Map presets for traditional print toning and split-toning
Sticky reorganization of tool presets (changes persist after relaunch)
New HDR Pro presets from RC Concepcion and Scott Kelby
Printing
Add "Edit" button for the description field in the print dialog
Allow print dialog and print preview window to be resized
Allow user to change the "preview well" background color in the print dialog
Allow user to manually position the printed area on the page
Hide color profiles that are inappropriate for currently selected printer when using "Photoshop Manages Color"
Reintroduce "Print selected area", allow user to modify selection in print dialog
Save
Add warning message that 16-bit images cannot display their file size in the Save as JPEG dialog
SDK
Add ability to access tool name associated with the tool preset name via scripting
Add the ability to return an array of guides in a document from the scripting SDK
Selections
Make the marquee, lasso, and mask panel feather values support decimal places like the feather dialog
Remember feather radius when showing dialog for selection from a path
Transform
Don't hide smart object icon when transforming a layer
Improve dragging of vector curves
Rotate 90 with even x odd pixel dimension to not land on a half pixel position
Preference to disable auto-rotate on open
Type
Add command to insert "lorem ipsum" for type
Added Gamma rendering parameter for better text rendering
UI
[Windows] New/open document to context click on a document tab (has always been on Mac, now Windows too)
Add "Don't show again" checkbox to Purge warnings
Remove the app bar and reduce the drag/app bar over 30%

Answer 1

1. Mainstage - Even though I probably won't use Logic for live performance much, I love how simple, clean, and intuitive the interface looks. I will probably use this when composing as it seems to be one of the easiest ways to route drum pads, create keyboard layers, etc. really quickly, and the interface is very inviting.
2. Delay designer looks really fun. I remember spending 30 minutes once in Sonar trying to get the stupid delay to do a really simple thing. I finally gave up and layered the audio data to make my own delay because it didn't give me enough control to make it happen in the plugin. It looks like I could have just drawn it into the Delay Designer and been done with it.
3. Import from Garageband - Not a new feature, but I love using Garageband as a musical notepad when all I want to do is create something simple or jot down an idea. In this period, I don't need all the features of Logic, but I will eventually, and then I just open it up in Logic and get more advanced.