[strongai]

I think it depends if you're interested in knowing how to solve these problems, or simply in solving them. If the latter, there's a bunch of commercial solvers out there. I won't name any for fear of an adverse reaction :0) but a trawl through the first page of Google results for 'optimization solvers' would probably work.

[Zizizizz]

more about the how is what interests me. I just find it fascinating. I've tried nearest neighbour, ant colony and simmulated annealing thus far (Or read about them and tweaked some code)