Of course, it's a no brainer to just walk into any room, look around and ask yourself ONE question and that question will answer all your "angle" questions.
If anyone needs to ask what that question is... they should not be doing this professionally... lol.
Hm... perhaps there are some people around here who are not professional, but are honestly working a way to get there, and who would really benefit to be exposed to what that "ONE" question is...
Anyways, one piece of advice I could give you, pristinephoto, would be to give distortion factors a thought. When photographing buildings inside or out, and you want a straight on look, your lens should be positioned perpendicular to the walls. With this in mind, I have gotten some nice results using up to 17mm lenses - shooting straight, reorganizing the room to get nice features in the foreground, and concentrating on the balance within the image. I've worked as assistant to quite a few professional interior photogs, and without exception rooms were always delicately lit with soft light, and background features (or adjacent rooms) simply lit to highlight the presence thereof.
Personally (not that I specialize in interiors at ALL) I have used natural light as far as I could, when I have open windows I "open them up" more, as necessary, letting as much light in as possible - Paying attention to where the light will be at different times of the day, and plan the shoot around that, or even catching more light from outside and bouncing it in - even just a small pop up reflector does wonders... Especially because it's a bed and breakfast, you would want it to have a nice, soft and cozy feel... Tripod and time expose if the light is real low...
Find which pieces (of furniture) in the room really impress you, shoot stuff with using those as main feature, going wide, bringing it all into perspective. Shoot interesting or visually stimulating pieces up close, for example one B&B I did, delivered welcome letters to the guests after they arrived. I put an envelope with some made-up guests names printed on it on the bedside table, lit it with candlelight, and shot it close. Nice & warm, personal feeling.
Just some ideas, which I hope makes sense. But when you've done it once, you'll realize soon afterward where your mistakes were, and where you may have missed out on something, and you'll do better next time... There's a first time for all of us... Good luck!