Most of this info came from the notes I took while listening to a radio show called The Browser. For more efficient shopping, you can determine what products are on sale by the last number in the price of the product. Here is a short list of price codes.

Tricks to shopping at Cosco:

You want to look for items that end with a 97c items, they are on sale.

If there is an asterisk on the upper right hand of the price tag, than this item will not be reordered.

An * is clearance.

If item ends at 88cents or 0 cents means these are manager items. May be damaged box or may be had been returned.

Go to Cosco the day after Christmas and buy things at discount. Some will then sale later on eBay.

Cosco has a 30 day price adjustment.

Has a guarantee of each product for two years.

Tricks to shopping at Target:

Regular price has a 9 on the end.

6 or 8 at the end means marked down.

4 is final mark down.

Home depot:

6 final or green tag means marked down

Gabenel Navy:

7 marked down

Office depot:

Anything except 0,9 or 5 is mark downs or clearance

If you have some tricks on shopping of recognizing the codes on price tags, please feel free to share them.