Groupon offers a $75 Wall Spirit Credit for $25 or a $150 Credit for $49. That's tied with last week's mention as the best credit offer we've seen from Wall Spirit. (It's also worth noting that we haven't seen the $150 credit offer since February.) Wall Spirit sells vinyl wall decals. Shipping is not included in the deal; it starts at $8.95. The credit must be used in a single order and is valid until November 27. Deal ends June 2 at 1 am ET.