Well, big antennas, QRO power and fast automatic software (FT8) and chasing DX. Work as many stations as possible. In a short period of time. It seems to make many radio amateurs very happy.
But... when I run 20 mW only with a wire antenna and I have been spotted bij LA9JO in JO99gb. That is 1967 km. And yes, That's what I call DX too.
I did it with WSPR on the 20 meter band. It's 98.250 km/watt or 61.064 mi/watt. This makes me very happy. 20 mW is about 1/3 of a bicycle light, can you imagine? Keep in mind that the Solar Flux was 70 and conditions were fair on all bands.