L.F.
Dear R.,
I have read many resumes in my life - you do not need a catchy header. A professional, clean, easy-to- read resume is much better. You should always include a cover letter that explains your interest in the job and why you would be a good person for the job.
My advice would be to try and cut back your expenses as much as possible and stay at home on the weekends with your daughter. She is only young once and you already work a full time job. Most part time jobs will not pay enough to make it worth you time. You might consider babysitting for other parents on the weekends for extra money -it is good cash (no taxes) and you could take you daughter with you or babysit from your own home. Good luck!