Technically Ethical

While this is technically allowed, I wouldn't feel to terribly comfortable charging expenses to my client for a night that I spent at home, in my own bed, working from my own desk. This is something I do often, so it's not a hypothetical in my case: I'd have no problem expensing the travel from home to work site, but expenses while at home? Uh, no.

This seems backwards. Rules or no rules, it seems very odd. What's the scoop elsewhere for government servants?

This is permitted in Alaska (I assume because of the vast distances involved and sparcity of population centers), but the previous Governer had the same travel patterns and didn't claim the expenses for working from home. Do any others?