Congratulations on the birth of your twins! I had a friend who used to take her twins and toddler out for walks in a Runabout Triple Stroller. She loved it, but couldn't use it for shopping. You might want to check out the website StrollerAdvisor.com. It has lists of the best triple strollers on the market today and I think it also mentions a sit and stand stroller for three kids. Good luck!