Declutter first-take everything that is not welcome in the room out. Don't feel you need to keep everything -we really don't remember why we have it sometimes! Clean the surfaces from things and this will make your room look nice. Start from the ceiling and go down you will see what a big difference in a small amount of time.
I am unemployed right now so I spend an hour to an hour in-half daily picking up, sweeping floors (we have a big dog) and making it look presentable. I used to deep clean once a week but just don't have the time anymore! After this routine I'm ready to do something fun. I don't feel so bad. There's a lot of quick tips to do more faster only to have more fun in the day!