One of my favorite features of Adobe InDesign CS4 is the vastly improved smart guides. If you haven’t upgraded or seen them in action, this is a feature that saves a ton of time…
If you are drawing shapes, a box appears near the cursor to give you the measurements. If there are other shapes around, smart guides give you hints to help with alignment, sizing and placement.
When moving shapes that you have already drawn, the box by the cursor gives you X and Y coordinates. Smart guides not only give you alignment tips, but also help you determine even spacing with the other objects on the page. When you get used to them, you’ll almost never need to use the alignment palette.
It all feels very natural and intuitive. It’s on by default, but you can turn it off if you like or customize the settings under InDesign > Preferences > Grids.
Adobe hasn’t promoted these much, but of all the enhancements to the Creative Suite, this is one I’ll use every day.