Versions: CS3 thru 5.5
There are many ways to align objects on your page, but I find that “snapping” them to guide is the easiest and fastest.
So many people don’t turn this feature on (or accidentally turn it off) and I just don’t understand that. When “Snap to Guides” is turned on, you will be able to feel your object “snap” into place when you get near the guide. Of course if you want the object NOT to align with the guide, you can easily toggle the function off or you can snap it to the guide, then nudge it off the guide.
To turn “Snap to Guides” on:
Follow the menus: View > Grids & Guides > Snap to Guides
OR use the following keyboard command to toggle the function on and off: Shift-Ctrl-; (semi-colon)
You can also snap to your document grid:
Follow the menus: View > Grids & Guides > Snap to Document Grid
OR use the following keyboard command to toggle the function on and off: Shift-Ctrl-‘ (apostrophe)
Think semi-colon for guides, apostrophe for grid!