Knowing how much cake is enough can sometimes be a little tricky for couples to decide. The number of guests you have attending may not be the ideal planning indicator for the size of your cake, as not all of them will want a slice. The average portion size for a wedding cake is a one inch by one inch finger, not the usual wedge-shaped slice you enjoy at home. There are lots of lovely cake slice boxes on the market for those guests who would rather take a piece home than eat it at the reception. Another option is to offer cupcakes as an alternative. This is a great solution for those who require gluten-free, eggless and so on. Your cake maker would ask if there are any dietary requirements at time of booking, preventing you from over (or under) ordering. If you're worried that there'll be extra cake left over, make sure you ask your cake maker to leave a box. This way, any spare can be wrapped up at the end of the night and easily enjoyed another day.