Hey L.,
My daughter is exactly the same way. Noone will do but me, and her naps are very short, so there are few breaks and housework is slipping. But I agree with some of the other girls, the infancy is so short, try to enjoy it.
A few things I've done is if I need to clean up the kitchen, I put my daughter in her high chair with some snacks and talk to her while I clean up. She can still see me and see that I'm there, but I'm not holding her. Also when my husband comes home from work, he starts to play with her. While she's distracted by him, I sneak out to the kitchen to start dinner. If she doesn't see me leave the room, she doesn't get upset cause she's distracted with daddy. Then she is usually content to entertain herself with her toys or a piece of paper, lol.
It took awhile for her to start gaining some independence and being okay with mommy putting her down and walking away. Sometimes you have to let them cry for a minute to realize that they are okay not constantly attached to your hip. But he does still need the reassurance that mommy will always be there, even if she's not in the same room. I agree that talking to him from the other room should help. Maybe not right away, but things take time.
Good luck!