Work / Life segmentation is noted as healthy, so it's easy to see why people should be excited for weekends and vacation. You can frame TGIF as an achievement

Work / Life segmentation is noted as healthy, so it's easy to see why people should be excited for weekends and vacation. You can frame TGIF as an achievement without it being about hating your job. It can be the same as completing a tough milestone / sprint. A great way to further encourage this is to start the week with a celebration too. Whether it's free lunches on Monday or little team things.