herb tea
green tea
normal tea
chai
teeccino (4 g carbs/cup)
coffee
low carb hot chocolate
water
fizzy water
fizzy water flavoured with low carb cordials, flavoured drops (google 'Aromhuset'), lemon juice, lime juice
bovril (beef or chicken)
broth (beef, chicken, veg...)
effervescent Sambucol tabs (and probably other brands)
coconut water
sugar free sodas
spirits and wine
Interesting that you should start this thread.
I've recently decided that I should be drinking more, and that the reason I wasn't drinking enough, was that I had lapsed back into bad habits and being 'bored' with my options.
So I have decided to only have a different flavour every drink for a couple of days. It is certainly making things more interesting!