The scarcest and most valuable of all values

That would have to be our time. 

When it comes to buying things, you really have to factor in your time, taxes, delivery costs, product risks and price to make a good decision.

Some approximations can help a lot.  For example, going to the local mega-store is worth it for large purchases.  You start a list, based on experience, for each of the big stores, and work on the list over time, before going to the store.  You know you can't do all of this in a day, because the ice cream will melt (add you own risk list here).  But you can make efficient use of the local Wal-mart, HEB, etc. and do better for your money and time than you can online.

The lists will tend to be big, and you will have to later execute correctly to not waste money.  For example, I can get pork cheaper at my local HEB than anywhere else, and it is good quality.  If it rots in the refrigerator because I got too busy, I lost out on the purchase.  Better not do it.

Hyper-Ad is dedicated to the principle of wasting as little of our customers time as possible.  We will get better at this as we go along.  We want you to come to our website and get it done! Please help us by both buying from our site and engaging us in intelligent complaint (so, for example, if you know we couldn't help a bad situation, let it go rather than blaming us.  OTOH, if you feel we could make something for you FASTER, tell us what you think.)