you’re free to easily overpay by falling for the upsell.

Thats when retailers make you think youll get a lot more if you pay a little extra.

Numbers and sizes say, a sheets thread count can play a role.

spinner image

A larger magnitude will seem like a larger magnitude of value, says marketing expert Nick Kolenda.

Check out these examples of how a costlier version of a purchase isnt always worth it.

Generally, around 400 thread count is the sweet spot, she says.

illustration of lined up blue houses on a white background with one red house protected by glass dome

If youre on a budget, go for 100-percent-cotton sheets in a solid color, not with a design.

Inexpensive printed cotton sheets can feel stiffer, Slaven says.

But only hard-core gamers likely need those superfast speeds.

change purse that is made of a brain cartoon illustration

So consult your owners manual for yourrecommended grade of gas usually regular (87 octane).

Turbocharged engines are a common exception.

Humidifiers

To fight dry winter air, dont splurge on the biggest model.

A man is trying to get money out of the white piggy bank

Like window air conditioners, humidifiers work best if theyre the size suited to your room.

That can lead todust mites, moldand other problems, says the Asthma and Allergy Foundation of America.

Copy/printer paper

Basic 20-poundpaper about $7 for 500 sheets is fine most of the time.

Dont pay more for heavier, thicker stock unless its for a special purpose, like a presentation.

If youre printing color on both sides of a page, for example, try 24-pound paper.

And check your manual for the weight range that your printer can handle.

Search online for choosing the right size generator to find plenty of guidance.