I have at least 2 doubles every morning. Occasionally, I make myself a latte as well. I've tended to randomly have a double in the evening after dinner, but since getting the BDB it's been daily.
If I could financially afford to drink more, I would, but coffee can get expensive if you're drinking and experimenting a ton!
As a side note, I used to think I didn't need coffee. This was until I tried going a few days without it and it was really uncomfortable. So, now I'm not delusional. I love it, but I also need it.
I know I've pulled a great shot when the flavour is 'like a beany taste that tastes like a bean'.