Couples
Many couples are a mix of styles: one plans and one improvises, one wants to talk it through now and one needs time first.
These guides use the four DISC styles to make those differences easier to talk about. They are about everyday communication, not a test of whether a relationship will work.
2 guides, newest first.

Holiday plans as a couple: the planner and the free spirit
Couples communication for holiday planning: why one partner wants a spreadsheet and the other wants to wing it, and how to plan a trip you both enjoy.

How to communicate with your partner when you're wired differently
Everyday style differences between partners, from pace and decisions to conflict and planning, plus communication exercises and questions to ask your partner.