I realize this post is a bit old but I figured it was worth responding to just in case someone else has a similar question.
I have seen people handle gaps a few ways, sometimes they don't list any work experience at all, especially if there is none relevant to the position you are shooting for. In others they list it but it is put low on the resume and is a small section with little details.
Be sure you list all committees, positions, volunteer orgs, and groups you participated in while you were at home. These can all be very relevant when considering someone for a position in customer care.
In your objection or goals word in something around your children, eg. seeking a full time position to help help support my children in college, and subsidize my household income.
I generally ask why there are gaps in work experience or I ask what experience the applicant has in the interview. Saying you were a stay at home mom wouldn't be a deal breaker as long as you had skills and experience in doing the work for which you are applying.