Home improvement stores are ones best option for buying a self propelled vacuum cleaner. Among ones options are Home Depot, Sears, Amazon, Walmart, Overstock, or one can buy directly from the manufacturer.
Upright or stick vacuum cleaners can be purchased at many retailers. Walmart, Canadian Tire, Sears, an Target each carry many brands of upright vacuums. Prices vary depending on brand and retailer.
There are a few places where one can purchase a self-propelled vacuum. This includes large electrical stores, department stores and online on sites such as Amazon.
Dyson makes several different models of self-propelled vacuums.
self propelled reaper
a self propelled, automatic vacuum. you can buy them at most pool stores.
Lunokhod-1 was the first self-propelled vehicle on the moon.
An aircraft with an engine. A non-self propelled aircraft would be a balloon or a glider.
How do you change the blade on a Toro 21" self-propelled mower
How to Change the Tires on Self-Propelled lawn Mower
A rocket.
The modern definition of a torpedo is a self-propelled underwater missile. (see related question)
There were 4 wheels on the first self propelled vehicle, built by Henry Ford.
The power cord is 12' long on most models, though some are 6' and 8'.