How can I reduce my dress size without cutting it?

You can shorten a dress permanently by machine or hand sewing a new hem, using hem tape, or applying fabric glue. You can also temporarily make a dress shorter by pinning up a hem with safety pins, knotting loose fabric in the skirt, or using a belt to hold up the excess material.

How do you put a slit in a dress?

How to Make a Slit in a Dress
Step 1: Measure the Slit. Put the dress on and have a friend measure from the bottom of the dress to where you’d like the slit to start. Step 2: Mark the Slit. Step 3: Cut the Slit. Step 4: Press the Edges. Step 5: Pin the Edges. Step 6: Sew the Edges.