10 Things You Should Never Buy Used

This one should be number 1. Do NOT buy a used sex toy because it can spread STDs and the recent Covid-19. Another reason why is because they made be damaged (ex. scratches) so they can irritate your genitals.

Yeah, no. Just no.

Let's face it, a helmet may seem fine on the outside, but the inner shell might be damaged, thus affecting shock absorption. Helmets can only withstand one crash. You may don't want to buy an old helmet either, as materials can also degrade after a few 5-7ish years even when it's unused - erodes faster yet if it's made of polycarbonate.

Same as with car seats, if these have been in an accident, it is best not to endanger your skull by putting it in there. And some internal, hidden damage could have occurred, so there is no guarantee that your self-inspection would catch any damage done to the shell. This goes for helmets of all types - motorcycle, bicycle, skating, etc. What to do? Same as child seat - buy new or from someone that you literally trust your life with.

These things mould to only one head. Protection is not guaranteed, & besides, a decent, brand new one is only slightly dearer

Unless you know the people who are the previous owners (and by know, I mean well - like they are your sister or something), never buy a vehicle safety device for your child second-hand. If these seats are in accidents - even minor fender-benders - they can be rendered unsafe. Without knowledge of the driving history of the previous owners, you do not want to risk using a car seat that would not protect your child in the event of an accident.

Seriously, people. Disgusting. Have you ever seen a set of jets properly cleaned out? It takes a LOT of chemicals and a LOT of work - more than most people are willing to invest (yeah... it's easier to sell if than really clean it good). And who knows who/what has been sitting in that tub. Ughhh.

What to do? Buy brand new only or find something else to spend your money on. Even if it is family you want to buy from... you just don't want to know them on that level.

Children's feet are developing at an intense speed and are still very pliable. While it is uncomfortable to wear adult shoes that have been broken in by another person, it can be downright detrimental to the development of a child's feet. Serious foot problems could result that would require corrective surgery later in life for that child. Please take the time to buy good, supportive shoes for your child - especially the ones that they will be wearing for an extended period of time. And never put hard-soled shoes on your infant. Infants really don't need shoes until they are ready to walk, and then they need "walking shoes" designed to assist in the correct development of their tootsies. As long as it is not a safety issue, barefoot is always best, so if they are inside or you have a foot-friendly yard, let them run barefoot (or with socks indoors in the winter)

What to do? My advice is this - splurge on the pair(s) that they will wear regularly. For instance, our son has one ...more

When I outgrew my toddler-sized sneakers my mom gave them to my little cousins

Just like shoes, above, even if you can get over the thoughts of what might have lurked between the toes of the previous owner and have heavily sanitized them as well, skates - if have been used for any length of time - will mold to the foot of the user and therefore, will never properly fit. They will then cause you much discomfort and possible actual foot damage.

What to do? Unless you really know what to look for, buy only from known sources who don't skate, but really wanted to learn. If they gave up quickly, there is your opportunity.

Then they would already be complete!

With the cost of these TVs, I can see what this could be appealing. However, due to old technology, you can easily get your hands on a set that has images burned into the screen. If you are buying an older model (which I'm guessing you are since someone is selling it), you might have a TV that was made before all of the kinks were worked out and plasmas were failing left and right. Without a store to return it to or a warranty to call on, you are out some big money.

What to do? Sit on that want. As technology advances, the cost of these will plummet eventually. Even last year's model can be found at a huge discount already - especially when stores are trying to clear the way for the newest version. Like computers (which I am not adding to the list, but I will give them a quick reference here), the designers are working way too quickly to justify buying used and dealing with outdated technology.

I like these plasma

Okay, I'll admit, this one I know nothing about, but in my research for this post, I found a list of parts that could cause either some serious headache or a real safety hazard by purchasing used. I am throwing it in because although I don't rebuild or fix cars, I can see why it would be appealing to buy second-hand parts. Since it could be a huge mistake, I am including it.

Old parts could explode..