Wall and Window detail

What did you use to texture your walls?

I used DAP Vinyl Spackle and a one-inch foam brush on all of the interior walls and ceilings. Spread the spackle in a small area and then tap it with the flat side of the brush until you get the look you want. The spackle is very forgiving and can be easily scraped off even after it's dry if you don't like the results, so you do need to paint/seal when you're done.