I'm taking Benjamin with me on a trip next week, and someone mentioned to me that a baby sling might come in handy for the times I need (or want!) to carry him rather than using the stroller. I thought that was a good idea, but I didn't want to buy one, since I didn't know if I would like using it. I found a couple of patterns online and was able to make one from some fabric that I had. From practicing with it, I think it might come in handy, but I'll have to post later on how I liked it after using it for a while!
Just thought I would link to the instructions. These instructions are really simple, and had good pictures to go along with them, as well as helpful instructions on how to use it!