Unfortunately House's coupon does not seem to be working on their Pet's site, but they're offering free shipping on all products without a minimum spend threshold. Plus you'll find plenty of things on sale at up to 40% off rrp.
What caught my eye was the Doog collars, which are at 30% off - they have a selection of styles in all sizes from XS to L. Matching leads and harnesses are also at 30% off, and that's a genuine discount compared to market prices + you'll get free shipping which $5 could easily save you another 30% on lower priced items.
4 styles available: Gromit, Toto, Scooby and Snoopy
* Collars - from XS for $11.17 to L for $13.97
* Leads - S for $16.07 and L for $17.47
* Harnesses - from XS for $17.47 to L for $27.97
You'll find the size chart on the product's page.