INPUT ARTICLE: Article: Most cases will just one screwdriver to access. Some cases use thumbscrews, but a screwdriver can still help loosen an overly-tight screw.  The most common screw is a 6-32, which you can use a standard #2 Phillips screwdriver to remove. This is the larger of the two most common sizes. The second most common screw is the M3. This is slightly smaller than the 6-32, but can still be removed with a #2 Phillips screwdriver. If you want to clean the inside of your case, you'll likely need some compressed air and a small vacuum. An electrostatic wriststrap can be helpful for grounding yourself while working inside the computer, but you can ground yourself without one. Use your operating system's Shutdown function turn the computer off. If you're afraid you won't be able to remember where everything goes when you need to plug it back in, take a picture or draw a diagram first. This is located on the back of the computer, and contains a variety of different connectors, including Ethernet, speakers, USB, display, and more. Knowing where this is will help you orient your case on the table. This will ensure that you remove the correct panel on the computer and can access the components inside. Avoid laying your case on the carpet when working on the inside. You should see two or three screws along the top edge of the back of the case that hold the side panel in place. Removing these screws will allow you to remove the side panel. Lots of enthusiast cases and some cases from major manufacturers will use different case panel mechanisms. Some use thumbscrews that you can remove by hand, while others have a simple latch and no screws at all. If you're having difficulty figuring out how to remove or open the side panel on your case, look up your computer or case model online. Electrostatic discharge can cause significant damage to your components without you even realizing it. Ensure that you are properly grounded by attaching your electrostatic wristband to the bare metal of the computer case, or by touching a metal water tap.  Click here for more details on properly grounding yourself. Computer's build up dust surprisingly quick, and dust can lead to overheating, poor performance, and hardware failure. Any time you open your computer, you should take a few moments to ensure that dust isn't becoming a problem.  Click here for detailed instructions on cleaning your computer.

SUMMARY: Gather your tools. Shut down the computer. Unplug all of the cables from the back of the computer. Identify the motherboard I/O (Input/Output) panel. Lay the case on your work surface with the I/O panel laying closest to the surface. Find the screws along the back of the case. Ground yourself before touching any components. Clean your computer while it's open.


INPUT ARTICLE: Article: If you’re looking to work on a specific project, check with your local craft or knitting store to see if they have samples made up. These samples will give you an idea of what yarn works well with the pattern and will give you an idea of how the final product will look. If your store does not have the full project completed, ask for a sample swatch instead. Craft or knitting store employees are extremely experienced in selecting yarns, as long as you know the right questions to ask. Some questions you should consider asking when selecting a yarn are:  Will it stretch? What size needle should I use with this yarn? Does this yarn pill? Is this yarn easy to work with? If you already have yarn on hand but are unsure if it’s the best choice for a specific project, test it out. Knit a 4”x4” (10cm x 10cm) swatch and see how it looks. To check draping, make your swatch even larger.  To really test out your swatch, treat it as you would your actual clothing. Wash it, crumple it and hang it on the wall to see how the yarn reacts. If the swatch does not perform up to your standards, switch it out and try another option. Yarn doesn't have to be expensive, but using higher quality yarn will yield a higher quality project. Don't compare yarns of different materials (silk yarn will always cost more than wool yarn) but compare yarns of the same material. If you're stuck between two wool yarns, choose the more expensive option for a higher quality result.  If you know what type of yarn you're looking for, check online. You may be able to score a better deal than you would in your neighborhood yarn store. Trade yarns with friends. The more yarns you try, the better you'll get at identifying quality yarns that work well for you.

SUMMARY:
Use samples to choose a yarn. Ask questions. Create your own sample swatch. Look at the price tag.