Make a bulk transport network using Railcraft, capable of automatically loading and routing full trains to various locations, including collecting resources from quarries and delivering fuel (localized power sources of course), collecting oil and transporting that to a dedicated refinery, and providing passenger transport through jumpseats on the trains and appropriate use of disembarking tracks.
On the malicious side, use this trick on a server:
I had the idea earlier to use crafting table facades on, say, a structure pipe (or normal pipe, really) and maybe add a gate for unusual GUI behaviour as opposed to making the crafting table look plain broken, then I saw on Dire's videos Soaryn's use of facades on the ME Interfaces, and Dire saying he hadn't seen a more pointless use of facades. I figured I could beat that (the glass facades on a full block in the middle), then had the idea to use the Interface for the fake crafting table because you wouldn't miss it with a right click like you might with a gate. The third block is a crafting table for comparison.