Lance Baker returns after an absence of three years to play the role that put him on the map in Chicago: delivering David Sedaris's bitter, witty holiday memoir about working as a Macy's elf in New York. Baker remains remarkably fresh in a monologue he's performed on and off since the late 90s, and he does well at re-creating the two sides of Sedaris's comic pose: sweet innocence and a hip world-weariness. But some of the script's pop-culture references are beginning to show their age, in particular a sequence making fun of the once ubiquitous Phil Collins. --Jack Helbig a Through 12/30: Thu 7:30 PM, Fri-Sat 7:30 and 9:30 PM, Sun 3 and 7 PM, Theatre Building Chicago, 1225 W. Belmont, 773-327-5252, $20-$24.