Lists.

'Er Indoors likes a list.
As you can imagine, we have many lists at present. These include:

Who's coming to the wedding.
Who's sitting where.
Options for the menu.
Options for wine.
Who's going by bus.
Who's going by car.
Who's got less than 26 teeth.
How many of the immediate family have pets.
Which of those who are likely to wear kilts have a passion for WWII tanks.
Colour options for the chair decorations.
Colour options for the curtains.
Colour options for the ribbons for the pepper pots.
Colour options for the hats worn by those with less than 26 teeth.
How many of the venue staff have beards (sub-divided into colour).
How many of the venue staff are vegans and have pets.
How many of the venue staff have a passing resemblance to Pol Pot.
Music for the ceremony.
Music for the dancing.
Music for the first dance.
Music for the last dance.
Music for every other bleedin' dance.
Who will be giving a speech.
Who won't be giving a speech.
Who won't be allowed to give a speech under any circumstances due to their knowledge of an incident involving the groom and one of the guests' pets.
Colour options for the desserts.
Colour options for soup.
Colour options for the blindfold for the accordion player.
Etc.
Etc.
Etc.