1. If you're purchasing clothes or shoes online, be careful with all the sizing. Some items typically run smaller or greater than normal. Some shopping sites will advertise if an item runs true to size. If the site doesn't list anything about sizing, glance at the reviews. In most cases, if the item is running larger or smaller, the reviewers will let you know.
2. When you shop online, it is essential that you spend a little time looking at the site that you will be considering buying from. You can find information about the web page from other sites and the Better Business Bureau. Not researching them could lead to you getting the products you probably did not order or getting billed a lot more than you should have.
3. If you have questions while shopping, look for a live chat function in the online store. Many big brands (and even some boutique stores) now have this functionality. You are able to chat immediately with a customer service representative to repair any issues or answer any questions before buying. That can give you a lot of reassurance.
4. In case you are shopping online, never give out your Social Security number. There is absolutely no website that really needs this number for you to buy something. If you are being asked for your Social Security number during checkout, perhaps you are on a scam website. Leave this site and discover one which has a better reputation.