Welcome to cleaning talk Allneatnow, we are glad that you found us.
I agree with dehn, your signature line " All Neat Now Superior Cleaning Service" is already a great start at a slogan
BTW - not to bust your chops but I would suggest that you use care and caution stating that you have over 50 years of experience as it implies that you have been "in the business" for that long and could be considered false advertising if your experience comes from cleaning your own homes and not from running a business(s) or working for others in the industry. (mind you that may be the case in your case I just saw an opportunity for a lesson and took advantage to put it into words so forgive me if you indeed have "professional experience")