Fast-track garlic paste
Put peeled garlic cloves and a large pinch of salt in bag. Seal it, then use a rolling pin to mash and roll garlic until it becomes a paste.
Roll superthin cookies
Cut open bag on two sides so it opens like a book. Put cookie dough in center of one side and cover with other side. Roll very thin with a rolling pin, then cut out cookies.
At-home sous vide
Put a piece of fish in bag along with lemon or lime slices, herbs, salt, and pepper. Force out as much air as possible from bag, then poach in 140°F water for 12 minutes. —ian_knauer