Alterations: Unless you’re extremely lucky, your wedding dress is going to require some alterations, whether that means, taking it in (or letting it out), or structural changes. Some boutiques offer a flat fee, while others will charge you for every alteration.

Forgotten Items: “Wedding brain” can affect even the best of us — and if you’re not getting ready in your own home, it’s far too easy to forget something and need a last-minute replacement.

Beauty Treatments: You’ve already set aside money for your professional hair styling and makeup application on the wedding day — but remember that you may need more than one trial for each in order to feel fully comfortable on the Big Day.