Here's a holiday season bright idea: Inspire guests to take photos (and thus immortalize your fab fête) with a few strategic add-ons, from a cool living-room photo booth to a private file-sharing site to corral all of the most memorable moments.
Collate your friends' party pics in one place with Eversnap. Download the app, create an album and code, and share them with your guests so they can upload snaps and videos to your private gallery. Get the free version for up to 20 users, or go with the InStyle offer, which gives 50 guests access to the gallery (and custom cards for them to grab at your party with simple steps on how to use the service). $50; geteversnap.com/instyle.
Eventstagram lets you live-broadcast photos taken at the party on a TV or computer by using a hashtag. Choose from a free version or a souped-up plan that allows you to upload more photos and select a background theme. Party Package, Eventstagram, $75; eventstagr.am. Use code INSTYLE20 for 20% off.
Fashion a photo booth by tacking fabric onto a wall, or spring for a backdrop from Minted.com, which "oozes charm," says Stark. "Then add in props, like a picture frame, to give guests license to ham it up!"