Going outside can help depression. You should try to sunbath for 10-15 minutes, which can easily be done by taking a short walk.
Giving yourself small goals that are EASY to complete helps.
For example: Maybe you need to throw away the trash because you've ordered food for a few days. Make it your day goal to throw the trash out.
I hate doing chores around the house, but I have used this method to keep my apartment clean.
Remember to reward yourself for completing goals. Even if you aren't interested in anything at the moment, try to do something that used to interest you.
Find ways to communicate with people. Talking about problems and connecting with people always helps.