NeKola,
I would suggest that you use a domain as was discussed here. The annual fee will pay for itself in just one client who types in your keywords to find you. I'm afraid no one will remember the office live url easily.
Not to discourage you at all but I speak from experience having used Office Live when I first opened my biz a few years ago.
There are two problems I found with OL...one was that the
SEO in the searches was low in part because the sites are designed with templates which are difficult for the search engines to generate.
Another problem I had was when the time came to open up a website that would be suitable for customizing with keywords and proper tags, along with the ability to customize it to my taste, none of the information is transferable to a host site. I had to redo the entire new site from scratch.
I understand the expenses of just starting out can be difficult. It costs about $7 a month to host your own website, about $10 to buy a domain and the time to use a free WP template to get a customized,
SEO-ready site for your new customers.
Food for thought for the future.
Janine