Icy cold Diet Coke, from a can (glass bottle is god tier but rare).
From a big bottle into a glass is acceptable, but needs to be cold and really does benefit from a slice of lemon.
I feel like I've got a fairly manageable but real Diet Coke addiction.
I don't/ can't have it regularly anymore on account of the insane cost - I can't dwell on the days of a box of 10 cans for £3 from B&M, I just get upset
Feels like paying petrol prices these days!
That said, some days I'll pay whatever they're asking cos I fully cannot face the housework without one! Or get started on a procrastinated task.