I don't know about you but it's rare that I've neatly wrapped up my tasks at the end of any given week. Single-day tasks are rare, there is always carry-over work including over the weekends.
The only thing worse than a feature that got rushed out the door Friday afternoon because you had a completely different role come Monday is one that was 80% done then passed off to someone else because you had a completely different role come Monday.
The only thing worse than a feature that got rushed out the door Friday afternoon because you had a completely different role come Monday is one that was 80% done then passed off to someone else because you had a completely different role come Monday.