Not in Europe yet, Prim- but when I do I'll regulate :-)
Still, I'd think the answer to 1-5's situations are all "Train. find something you can do that's heavy (relative to your ability that day) and do it for a few challenging sets. Then do something like chins or max rep pushups in 10 minutes."
A few intervals for good measure and then retreat to the life of suck that doesn't allow meaningful training. It's better than any load of BS I could espouse here except for acquiring enough females to improve your cardio without leaving the bedroom.