I travel almost every week. During my busy months, I try to have one week home and one week away. Although it's not fun leaving my 18 mo old, my job also allows me to have flexible time since when I'm home, my office is at home. For example, I can take the entire week of her birthday off or the entire month of December off by just not scheduling it and I don't have to take sick days. I'm on salary so it doesn't hurt my income. I choose my schedule and there are times when I wish I didn't travel and yet other times the trips give me a needed break.
I know it isn't for everyone, but I'd love to connect with other moms who travel and it works for them (and their AMAZING husband).