RE: Blanket/Play Mat
I agree that the Carter's waffle knit receiving type blankets are too thin for "playtime". But Carter's also makes thicker cotton interlock receiving blankets which are nice for playtime. They usually match their John Lennon and Just One Year lines.
I have also seen nice ones at Gymboree and BabyGap. Department stores also often carry these. Check out Macy's and Lord&Taylor type stores in the baby section.
HTH,
Beth, mom to older DD (8/01) and younger DD (10/06) and always missing Leah (4/22 - 5/1/05)