Funnily enough, I'm the exact opposite I can do a bowline in any condition - although need to do it one handed if really tired, because that's how I first learnt to do one.Figure 8 on the bight - Alternative to bowline, I find this much easier to tie.
But to do a figure of 8 I actually have to take a moment to think of what I want to achieve. Super embarrassing really! I blame the fact that I only learnt to do that one in my mid-20s when a friend took me climbing, whereas the other knots I know, I learnt as a kid and used to spend hours doing them on bits of rope when "bored".