Provided you don't have to physically travel to a work location more days but shorter does seem to be more productive, for me at least. I could work a few long

Provided you don't have to physically travel to a work location more days but shorter does seem to be more productive, for me at least. I could work a few long days a week but I get a lot more done working a few hours a day instead. I'll often work 6 or even 7 days a week but those work days are only 1-4 hours long. In particular 1-2 hours spent working on saturday or sunday usually results in a extremely disproportionate increase in overall productivity.