They have fur car seat covers including sheepskin and many other types of seat covers at www.supercheapauto.com. Wal-Mart is a very popular store that has a variety of seat covers at www.walmart.com. You can also find some nice seat covers at www.halfords.com.
There are many accessories that can be purchased for smart cars. Floor mats, trailer hitches, seat covers, and wheel covers can be purchased for smart cars.
With the dog and children involved, probably the best seat covers for you would be hardwearing and waterproof. The website at roofbox.co.uk have a very large range of seat covers, certainly some of which would be suitable for your needs.
House keys can be customized using keyrings or key covers. There are countless keyring designs available and some can even be personalized with a family photograph.
You can buy numerous styles of back seat covers for cars, some very cheap some very expensive.
Although I am not familiar with Halfords, I have done some research and found that they do indeed sell car seat covers. I have found that they have an extremely large selection of seat covers and you should have no problem finding exactly what you are looking for.
Yes there are several options for pet seat covers including custom. Here is a link so some pet seat covers that I found http://www.hunterk9.com/site/870877/page/343880 I hope that helps.
A great idea would be to do some research online. There is a webpage at www.shearcomfort.com/Volkswagen/Jetta-Seat-Covers.asp that has a variety of seat covers that include plain black, and they offer free shipping.
Some of the places that one can order specific van seat covers are AutoAnything and ShearComfort Ltd. Other online retailers where one could order specific van seat covers are Pep Boys, eBay, and Wet Okole.
Designs for a house can be made with architectural software. You can do this yourself at home or hire an architect to draw up designs for you. Some premade designs are available on the internet as well.
Automobile seat covers can be found at a variety of stores, both online and in-store. Some of these stores include: Amazon, eBay, Halfords, Argos, Wilko and Tesco.
Most local auto stores and department stores will have seat covers. Some of these retailers are Pep Boys, AutoZone, O'Reilly's, Meijer, Wal-Mart, Target. If there is a specific type of seat cover that is not offered locally, websites would be the next area to explore on buying a seat cover. Amazon.com has a nice selection. However, there are websites such as http://www.seatcovers.net/ that specialize in auto seat covers, their selection is much more varied and they even do custom seat covers.