In a perfect week I would play every weekday, to at least complete the daily challenges, as well as adding a longer practice session once a week to work on a specific thing.

During the week I will likely be practicing in the early evening, after I finish work.  Hopefully that will allow my practice session to double as a sort of relaxation exercise as well to remove any stress from the work day and take my mind off of my professional matters.

I will play at my computer desk.  My current chair has the ability to flip the arms up and out of the way, which would allow easier playing of my guitar, and being in front of my computer will let me quickly look up any practice materials needed.