MidnightRambler
The Streetwalkin Cheetah
I build barricades on every other square on my border, i usually put some artillery and a few good defensive units in each one. Then i keep all my offensive units spread out along the barricaded border, so when war invetably comes, im fast, prepared, and effecient. When the border moves up i use my captured workers to build a new line of barricades. It might not be THE most practical use of workers but it looks cool and helps me keep my units organized.