I ordered my invites from Vistaprint late Monday night. I spent just enough to get free express delivery, and it said to make sure it was an address that could get delivery during the day & that they'd be delivered Monday. I work from home Mondays, so I figured that was perfect. Then lo & behold...I got an email and a UPS tracking number this morning that says they've shipped & should arrive tomorrow....when I am downtown working 
Does anyone know if they'll leave them at my door or if I have to sign? UPS's site doesn't say delivery required, but who knows. I live in an apartment building & can buzz in delivery guys from my cell phone & am thinking I could leave a note on the front door. Any other thoughts or knowledge on this?