One tip I learnt from a friend as a fresher at uni and have stuck to faithfully ever since, is to take a newspaper and fold it to the size of shelves in your kitchen cupboards (on top of them too.) Then take them out once every couple of months and replace them. You’ll never have to scrub at greasy, grimy kitchen cupboards ever again and if you fold or cut the newspaper to the right size no one need ever know about your slattern ways.
P.S. What are your weekend plans?