Things your state/province does and you like

[thspfc]

Wisconsin's control city choices overall are pretty good. Other states can be really extreme - you have Illinois who will sign cities hundereds of miles away, and then you have Minnesota and Pennsylvania (and I'm sure there are others), who will sign the most irrelevant places.

[epzik8]

Designating headlight use areas and "next signal" signs.

[DevalDragon]

Texas:

Frontage roads along most interstates and limited access highways allowing easy access to local businesses. While getting rare, there are still some 2 way frontage roads which are awesomely dangerous if you don't know who is supposed to yield.

Yield signs at stop lights so you can make a right turn on red without stopping.

U Turn ramps at major intersections on frontage roads so you don't have to wait for 2 traffic signals.

[interstate73]

It gets a lot of crap for being boring, expensive, crowded etc but the design and layout of the New Jersey Turnpike is ingenious

[formulanone]

"next signal" signs.

This something I'd prefer to see nationwide, at least in urban and suburban areas. Reading street blades from 300-1000 feet away is not always possible and they can be obscured even from short distances.