Holiday, holiday does equal to good sex. No way that guys won't have sex during holiday, when you're in your holiday, the getaway from routine life is already a big relax. When you check in to the hotel in a totally new and clean room, no worry about your kids or house work, she is already in the mood for sex, order wine or champagne can make your night mind blowing.
Argument can lead to good sex? Yes, it is, but post argument. We are not asking you to create a fight here, but take the chance of having great sex after an argument. After the cold and furious fight, the sex will tend to be more explosive than usual as you feel relief that it's over and you will want to make it up to your partner. You guys will need a good make up sex to fix the relationship.
If you like hot and mind blowing sex, don't forget about those little dates that your women cares about. Anniversaries of your marriage, first date, first child or even first sex. Remember it and you will be rewarded. Romance may not be equal to sex, but it can always lead to good sex, waste some time and effort to do it and you will know it's worth to do so.