I use the LoTW  !   But if you need a card .....

PSE send SAE if you are going to qsl direckt .

( SAE  means :  Self Addressed Envelope )

If you send a direckt QSL without IRC or 2$ i will  return via BURO .

 Direckt to my home address for stations in EU    2$ or 1 IRC.

TF  BURO is also ok .... but very slow . ( Takes about 1 year ) 

I recomend all DX stations to QSL to Tiny ,KT6YL, she is the best manager in the world !

I´m on all bands from 160m to 6m. On 6m i have 5 ele Yagi, 10-15- 20,TH6DXX+TH3Mk4 triband yagi´s, WARC bands, Gap Titan vertical, 80 & 160 G5RV Dipole.