You are asking the right people about domain names. Domain names are my specialty...(or at least I like to think so)
Your sister is right, many people do not use their company name as their domain name. I can think of several possible reasons for that. 1) the domain name is taken 2) people have trouble spelling it 3) they find something catchier that is shorter.
With any domain name you choose, you will want it to reflect your business, your slogan.....basically the message you want to get across.
We have a website that can help you pick a name. If you go to
NameParkway.com Click on Domain names and then name spinnner. You can put in words that reflect your business and it will spin the words around and come up with ideas for you. Sometimes the results you get will help spawn other ideas.
Let us know if you still need help.
Are you going to do the website yourself?
Links-
