Thanks for all the great comments! After tallying everyone's planned or preferred accessory knits, cowls were the clear winner (with several commenters referring to the fact that cowls are now in fashion), followed by hats, then scarves; mittens/mitts/gloves; and shawlettes. Socks, capelets, bag or purse and slippers were less popular.
I agree that cowls are in fashion, and no wonder: they are fun, flattering, practical. And they are also not too time-consuming to knit (a long scarf can take forever, or maybe it just seems that way!). Unlike socks or handwear, they don't have to be worked on dpns or using magic loop or 2 circulars (all a bit of a PITA, IMO)-- a convenient, easy-to-use 20-inch circular is perfect. By the way, I have both a cowl and a hat pattern in the Interweave Knits Accessories issue that just came out! I've already made my own version of the Serpentine Cowl; I'll post some pics in an upcoming post.
In fact I'm hoping cowls stay in fashion for a few seasons; I may yet whip up a cowl pattern before the end of the year, but right now the next Knititude pattern looks like another hat (stay tuned).