100% Profit on Small Investments

Some of the best investments are not stocks or bonds. In the spirit of the holidays, here are some investments for $15 and under that promise great returns in convenience, time saved, and value. All of these these ideas are from Reddit users in response to the question

Reddit, what are some not well known products, $15 or less, that have made your life incredibly more enjoyable/easier?


Magic Eraser
Rain-X
Zip-It
Styptic Pencils
gaffers tape
A headlamp.
knife honing steel
Bodyglide
Gold bond powder
Dr. Bronner's soap, especially the lavender kind.
Mattress sheet clips.
Noise and light blocking curtains
Bengay
SOS tuner
Magic hair remover
Goo Gone
head massager
A meat thermometer!
F.lux
Vaseline
Jar Opener Rubber
A roll of Glad "Press n' Seal".
small cast iron skillet
little pen-shaped, battery-powered hair trimmers
Bagel guillotine
10mW green laser pointer
Tongue Scraper
rice cooker
Kitchen scale
Drop Stop
Staedtler Mars Plastic Eraser
Utili-Key 6-in-1 Tool
Oxo can opener
Baby wipes
DivaCup
Distilled white vinegar
Body Pillows
hard drive enclosure
HDMI cords
Grandma's Lye Soap
flask

There are even more in the Reddit thread. More than half the fun is in reading the dialog commenting on these suggestions, so go check it out.