Sometimes it takes something to make a day wonderful - time to indulge in your favourite hobby or what have you. So what would your characters value here? Does anyone try to ensure they don't get the something to help them to have wonderful days? Do they succeed in their aims here?
Food and drink can play a part in someone having a wonderful day. So what special meals do your characters like and why? Are their treats easy to obtain?
Overall, does anyone try to spoil the wonderful day your characters have got lined up?