Hi
I've worked from my home for about 3 years. I started doing it while it was still illegal to do so in our city, but we found out that within the last year it has now become legal.
We have a pretty nice setup that just sort of happened to work out. The neighborhood is convenient to get to, but still is nice, quiet, and safe. Our neighbors are not petty and they keep to themselves, so my small amount of traffic and parking haven't been a problem. Our house is laid out in such a way that the clients come through the front door and see only the front room (sort of a living/dining room but has our desks and a consultation/waiting-area table and chairs), and a hallway with the door to the treatment room at the end, and a client-only restroom on the way. They see NOTHING of our kitchen, living room, bedroom, laundry room, etc. In fact, the hallway to those rooms is sectioned off at the front with one of those Japanese-looking 3-panel room dividers.
Because of our setup and the fact that my husband's and my schedules are identical and we have no kids, our home life remains pretty unaffected. We're quiet people anyway, so when one of us is in session (we're both MTs) the other doesn't have to alter their activities much. It's actually pretty cool because my husband knows I'm safe at all times--because he's right at home with me, usually right down the hall at his computer.
The main thing to concentrate on is the cleaning, at least of those areas the clients see. While everyone understands a house IS lived-in and not just a museum, it still has to be REALLY sanitary. Bleaching down the restroom weekly and vacuuming at least every other day is a must. As far as food smells, there's an easy way to deal with that.
At one of the local craft outlet malls, they sell these scent lamps that you fill with a scent of your choice. The mixture is mostly alcohol and a little bit of fragrance oil, but the alcohol will burn off and leave only the fragrance wafting through your house. The neat thing is, it will sort of "soak up" or neutralize odors. We tested ours out after making pan-fried salmon with garlic for lunch. A friend of ours came over (who hates salmon) and we mentioned to her that we'd just had it and she said she couldn't smell it AT ALL.
Working from home isn't for everyone, but it works best for us for sure
I joke around that you can't beat my "commute", since it's only 12 feet down my hallway, which often makes the difference between being able to see one more client or not
Good luck!! I hope it works out for you, and we wish you the best
Hugs,
~Jyoti