I'm currently making the chex mix. Except that a) I forgot to buy pretzels and b) I just spilled Worcestershire sauce all over myself. Maybe I'll make a second batch tomorrow after having gone to the store.
Also, I have a huge number of friends who have RSVPed "maybe". It'd be nice to know how many will actually come so I'll know how much more Worcestershire sauce I need to plan on spilling on myself in preparation.