Because shopping online is just a matter of a few clicks, there is the chance that you pay more than you should or don't get the real value of an item. You can curb your bad habits with a Post-It note.
To stop over-spending, psychologist Susan Krauss Whitbourne advises sticking a post-it note with a maximum budget before you go online.
Decide ahead of time on an item's value and set that as your maximum (including shipping costs). This applies primarily to new items. Go online elsewhere and get the item's actual lowest price, again, plus shipping and taxes. If necessary, write that amount down on a post-it note and put it on your monitor. Don't go above that total.
This is most useful for a targeted purchase; there are other ways to avoid expensive impulse purchases .