Don't forget the power of the concierge
I'm quite sure I don't use the concierge services at hotels to their full advantage, but I do use them nearly every day for one thing: holding bags. Let's say you're at the conference and you have your laptop, but you’re headed to dinner. Sure, you could head up to your room and drop it off. But given the scale of the Venetian, you could be walking for days to get to your room. The answer: Drop it off at the concierge. The concierge will take any bag, jacket, purse, or piece of luggage; you don't even need to be a guest at the hotel. It'll cost you a buck or two in tip, but your bags will be in good hands. In fact, they'll be sent downstairs on a conveyor belt and put away in a storage room – easily worth a couple bucks.