Should or could or must

Things that must be done today
Food and grocery shopping
Washing of clothes and dishes
Water the herbs and the lemon tree
Put out the rubbish

Things that should be done today
Baking of chocolate biscuits to say thank you to all the coworkers for sponsoring Junior in the walkathon
Cleaning

Things that could be done today
Trimming the rosemary, the mysterious hedgey plant and the other mysterious creepy plant
Napping
Thinking about Diana Wynne Jones
Moving the old desk out of the study

Things that have been done today
Shopping at Fyshwick markets and the supermarket
Clothes and dishes cleaned
Plants both watered and trimmed (hands with pleasantly resiny feeling after snipping off lots of rosemary)
Rubbish is out
Had a nice nap

Must be time to read and/or eat.