I tip at restaurants, delivery boys and for cabs, nothing else. At restaurants, I just tip what makes for the next round sum (like 16 Euro for a 14,80 bill etc.), I always give the cab driver 7,50 Euro as it's always the same distance and it's his fault if he bollocks it up hoping for more money from me. Delivery boys go the same as restaurants, usually, because those can very well spit in my food downstairs and I'd rather have my food as the cook intended it to be =_=

I don't tip for hair cuts, as I'd have to tip myself - I used to tip 2 Euro for the 20 Euro "discount" hair cut at a local hairdresser, but those cuts always ended up looking shitty after two or three days, so I'm back to cutting my own hair.

And tipping baristas? wtf?

Then again - Germany. Better wages etc. A lot of people I know don't tip at all.