Finally, here, perhaps is a useful suggestion.  When you have a sale, the expiring time may be on a single page in the fine print. But the products you have on sale only have a date listed on the product page. When I am going through products that are part of a special sale I have no idea that there may be only a short time left or all day. The assumption when I see that an item expires April 24th is that it expires 11:59PM April 24th. Sometimes I never even go through the sale promo page - just through my wishlist and that triggers me to look at what else might be of interest.

If you're going to put a product on sale, and you expect me to time it to a random minute, please let me know the time, preferably both on the product page and in my cart. 

Don't emulate DAZ on some of their things. They got too complicated with their promotions and that, combined with too many unlabled items that don't work easily in Poser (unless you read the details AFTER you click to the product page), is why Rendo gets more of my money typically.  It is a function of time spent. My time is valuable to me. If I spend too much time figuring out a sale and don't get anything I lose interest. If I get burned once or twice spending time with no reward, I'll still come back. If it looks like I may likely get burned on a regular basis, I won't.