A lot of people bring up the issue of commuting, which I think is a bit thorny. Here's a quote from one of the comments below:
> I feel vastly more productive with not spending 2-3 hours every day commuting
Your commute is not your company's business. They might try to make it easier by implementing shuttles and flexible work schedules, but at the end of the day you signed up for this commute. If you work for Google, you certainly had the option of working somewhere else closer to home. You chose Google because you liked what they had to offer. They chose you because you seemed really good. They could have chosen someone else who lived closer to their office. I doubt that they take the commutes into their hiring consideration, within reason. So in other words, you thought that the extra time it takes to earn the Google check was worth it. Why bring it up now? Please don't use the "I give my company more of my time now" argument, because nobody believes it. You just simply get up later in the morning and get to see your family earlier in the evening. A more honest statement would be along these lines:
> I have reclaimed 2-3 hours from my time that was previously allocated to earning my paycheck, and I now redirect it towards other activities. Those activities range anywhere from 0-100% on the scale of how relevant they are to me being a better employee.
(I was inclined to not start at 0% of the range due to the clear benefits of distancing yourself from your work regardless of what you're doing... but then I remembered a consultant I recently met who offered his services while being a full-time employee at Google. When I asked him if he'll be able to perform his service reliably due to his supposedly challenging day job, he grinned and said that WFH has been great for his consulting work. So 0% it is.)