Just discovered this one today by accident. If you marquee select, then hold alt/option, you can move the marguee selection around as a whole to fine tune your selection.

If you ever use a curve to extrude, you might find it's a pain to select the curve again because it's in the middle of the geometry. You could use selection masks (turn off select polys or NURBS or...

Alternately Perfecto, Ctrl+Shift+RMB works for any of those tools.

Virtual sliders are pretty well known (Ctrl + LMB drag in any field in the AE). However, you can get faster sliding using...

Here's a good ol' general one:
To find new hotkeys and workflows, mash the keyboard every now and again. You will be surprised at the results. Just save prior to experimentation.

Cool tip Jay... just to add to that, the increment size depends on distance from object, and it doesn't appear to work in single axes, at least in persp, as XYZ all change regardless of axes selected...

Tip for increased speed in laying out UVs:

For fast cutting, moving and sewing UVs, try this workflow. These instructions just involve clicking the mouse buttons and dragging in a certain...