nail down (someone or something)
to make certain or sure of something
I am trying to nail down the exact time that the meeting will begin.
Ways To Save Money On Your Dream Wedding
It would be very wise on your part to avoid a Saturday wedding. As the most popular wedding day, Saturdays tends to get expensive both vendor wise and venue wise. Holiday weekends and other holidays are as expensive for the guests wholl have to be accommodated in hotels. By picking up an odd day or ostracized day like Friday or Sunday you would be indeed cutting cost of the venue by up to 50%. You would be saving more than 50% by having the wedding on Mondays, Tuesdays, Wednesdays and Thursdays. On these days photographers, florists and other vendors offer a good discount as well.