In one sentence, describe what the following article is about: You can give your lips a quick exfoliation treatment with just a damp washcloth. To remove dead skin from your lips on a daily basis, take a clean washcloth and hold it under warm running water. Then, use the washcloth to gently scrub your lips.  Use gentle circular motions to scrub away the dead skin. Pat your lips dry with a clean, dry towel when you are finished. Lip exfoliating scrubs are available in drug stores, department stores, beauty stores, and online. If you want to get a premade scrub, then you should be able to find one with no problem. If you’d rather make your own, then you can use ingredients that you may already have in your kitchen.  To make your own exfoliating sugar scrub, add a tablespoon of sugar to a teaspoon of olive oil or coconut oil (at room temperature). Combine the sugar and oil until it they form a paste. You can keep the scrub in a small jar or other container in your refrigerator for up to a week. If you prefer to make the scrub fresh when you need it, then just take a pinch of sugar and few drops of oil and mix them together whenever you want to exfoliate your lips. You only need a small amount of sugar scrub to exfoliate your lips, about a ¼ teaspoon or less. Use your index finger to apply the sugar scrub to your upper and lower lips and move it around in circular motions.  Rub the sugar scrub all over your lips. Make sure that you scrub all of the surfaces of your lips and the areas around your lips. Do not use sugar scrubs more than twice per week or you may irritate your lips. When you are finished, take a clean washcloth and moisten it with warm water. Then, use the washcloth to wipe away the sugar scrub. You can also splash a bit of warm water on your lips to get the scrub off of your lips. After you have removed the sugar scrub from your lips, take a dry towel and pat your lips dry. Do not rub your lips dry with the towel, just use a gentle patting motion to remove any excess moisture. Make sure to follow up your exfoliation treatment with a good lip balm.
Summary: Use a washcloth to exfoliate your lips. Buy or make a sugar scrub for your lips. Apply a small amount of sugar scrub to your lips. Wipe away the sugar scrub with a damp washcloth. Pat your lips dry.

In one sentence, describe what the following article is about: Once you've memorized your perfect squares, finding the square roots of imperfect squares becomes much easier. Since you already know a dozen or so perfect squares, any number that falls between two of these perfect squares can be found by "whittling away" at an estimate between these values. To start, find the two perfect squares your number is between. Next, determine which of these two numbers it is the closest to. For example, let's say we need to find the square root of 40. Since we've memorized our perfect squares, we can say that 40 is in between 62 and 72, or 36 and 49. Since 40 is greater than 62, its square root will be greater than 6, and since it is less than 72, its square root will be less than 7. 40 is a little closer to 36 than it is to 49, so the answer will probably be a little closer to 6. In the next few steps, we'll narrow our answer down. Once you've picked out two perfect squares that your number is between, it's simply a matter of whittling away at your estimate until you reach an answer you're satisfied with — the farther you go, the more accurate your answer is. To start, pick a "tenth place" decimal point for your answer — it doesn't have to be correct, but you'll save time if you use common sense to pick one that's close to the right answer. In our example problem, a reasonable estimate for the square root of 40 might be 6.4, since we know from above that the answer is probably a little closer to 6 than it is to 7. Next, square your estimate. Unless you're lucky, you probably won't get your original number — you'll either be a little higher than it or a little lower. If your answer is too high, try again with a slightly smaller estimate (and vice versa if it is too low).  Multiply 6.4 by itself to get 6.4 × 6.4 = 40.96, which is slightly higher than original number. Next, since we over-shot our answer, we'll multiply the number one tenth less than our estimate above by itself and to get 6.3 × 6.3 = 39.69. This is slightly lower than our original number. This means that the square root of 40 is somewhere between 6.3 and 6.4. Additionally, since 39.69 is closer to 40 than 40.96, you know the square root will be closer to 6.3 than 6.4. At this point, if you're happy with your answers, you may want to simply use one of your first guesses as an estimate. However, if you'd like a more accurate answer, all you need to do is pick an estimate for your "hundredths place" that puts this estimate between your first two. Continuing with this pattern, you can get three decimal places for your answer, four, and so on — it just depends how far you want to go. In our example, let's pick 6.33 for our two-decimal point estimate. Multiply 6.33 by itself to get 6.33 × 6.33 = 40.0689.  Since this is slightly above our original number, we'll try a slightly lower number, like 6.32. 6.32 × 6.32 = 39.9424. This is slightly below our original number, so we know that the exact square root is between 6.33 and 6.32. If we wanted to continue, we would keep using this same approach to get an answer that's continually more and more accurate.
Summary: Find non-perfect squares by estimating. Estimate the square root to one decimal point. Multiply your estimate by itself. Continue estimating as needed.

In one sentence, describe what the following article is about: Chicago style treats regulations as though they don't have an author, so the first part of your reference entry is the title of the regulation. Type the title in title-case, surrounded by quotation marks. Put a period at the end of the title, inside the quotation marks. Spell out the Code of Federal Regulations in italics, followed by a comma. Type the word "title," followed by the title number. Type a space, then put the year of the code edition in parentheses. Place a colon after the closing parentheses mark. After the colon, provide the page numbers from the print edition of the CFR. Do not use any abbreviations before the numbers, such as "p." Place a period after the last page number digit.  If you accessed the CFR online, go to the Government Printing Office website at gpo.gov to get a PDF of the print version of the regulation. That way, you'll have a page number. If you accessed the CFR online, the last part of your reference entry will be the direct URL or "permalink" for the regulation. Use the PDF available from the GPO, so that you have an online copy of the official print edition of the code. Place a period at the end of the URL. When using a footnote for in-text citation, include all the same information you included in your reference list entry. However, instead of placing periods between the elements, use commas. The only period in a footnote is at the end.
Summary:
Start your reference entry with the title of the regulation. List the CFR title number and year of publication. Identify the page numbers where the regulation appears. Provide a direct URL for the regulation. Use commas instead of periods in footnotes.