Would be a great improvement if the back button would restore the previously clicked filter on the homepage. Each time you press back after visiting a WP item you have to press the WP filter again. (filter
> wait 2s>view item->back->filter->wait 2s etc) Gets very tedious after 2 or 3, and new users will probably just assume they are still filtered after pressing back.
If you used a cookie that persisted you would also have the benefit of e.g. WordPress buyers automatically being filtered by default for WordPress and the new items would once again get more homepage exposure.