@Antti, I know we are both powerlifters. I have had what I believe to be good results by doing swings the day after powerlifts, which since my lifitng is almost always skill-focused, is what Pavel recommends.
I have my own little hybrid approach which I've mentioned here before, a mashup of my understanding of the various benefits of swings with one and two hands as I've come to understand from reading pretty much everything around here, including by not limited to what Andy Bolton and Fabio have said about heavy 2h swings and what I've gleaned from S&S and Q&D.
I like to do a "series" of 10 left, 10 right, and either 5 or 10 two-handed (choosing 5 or 10 depending on the weight I'm using). I do those three sets on some sort of clock, typically on the 1:15 for me, then take a longer rest before repeating the series up to 4 times in total.
Example
00:00 - 32 kg x left x 10
01:15 - 32 kg x right x 10
02:30 - either 48 kg x 2h x 10 or 56 kg x 2h x 5
rest until the 5:00 or 6:00 mark on the timer, then repeat the above series.
I have no science to support my particular approach, just my feeling that I'm covering a lot of bases by doing my swings this way.
-S-