Similar to their concept of the post-yardwork, let me introduce “the 'miring”, the beer you have after completing some DIY project, drunk in silent contemplation of the result.

Partner: “All done love?” Me: “Yep, just having a 'miring. Be with you in a minute.”

Love having a drink garnished with a sense of accomplishment. Though it depends on the nature of the project if actually needs to be a beer IMO, whisky etc. is fine if the project doesn’t involve physical exertion.