I am currently 12 weeks pregnant with my second child and I am quickly outgrowing my "normal" clothes. I was too big to button or, if I could button, sit in my current jeans and maternity jeans were just too big. The rubberband trick just wasn't cutting it. I needed a solution. I went to Motherhood Maternity and purchased a belly band, The Tummy Sleeve. I cannot begin to tell you how happy I am with the Tummy Sleeve. I can now wear all of my "normal" jeans and pants unbuttoned. The big difference now is that they stay up with help from the Tummy Sleeve. I can even wear maternity jeans with help from the Tummy Sleeve. The Sleeve is made from a very strechable fabic that holds up your clothes but isn't too tight around your stomach. It is seemless and no one even has to know you are wearing it. I would recommend this product to all pregnant women - it is a lifesaver!
Update On May 15, 2008: I just heard of another great use for the Tummy Sleeve. My friend recommended using it to cover your stomach while NIP (nursing in public). It nicely covers your "baby belly" from hanging out for all the world to see.