We've been noticing that Lily has really been trying to hold her head up more so we thought we would try to help her learn to sit up by buying her a "desk". OK, so its just a baby seat with a ring of toys around it but isn't that what most adult desks are anyways? A flat surface covered with toys.
Lily seems to enjoy sitting in the seat but we do have to prop a pillow up behind her head so she doesn't flop all over the place. Once she gets the hang of sitting up I will be sure to pose her with some office-type props.