Here are a few options for a WordPress post tag description for “美容費用” (Běi róng fèi yòng – Beauty Expenses) in Traditional Chinese, ranging in formality and specificity:

**Option 1 (Concise & General):**

> 了解所有美容相關的開銷。
> (Liǎo jiě suǒ yǒu měi róng xiāng guān de kāi xiāo.)
> *Translation: Understand all expenses related to beauty.*

**Option 2 (More Descriptive):**

> 記錄和討論各種美容護理、產品、療程所涉及的費用，包含日常保養、特殊美容項目等等。
> (Jì lù hé tǎo lùn gè zhǒng měi róng hù lǐ, chǎn pǐn, liáo chéng suǒ shè jí de fèi yòng, bāo hán rì cháng bǎo yǎng, tè shū měi róng xiàng mù děng děng.)
> *Translation: Record and discuss the expenses involved in various beauty treatments, products, and procedures, including daily care, special beauty projects, etc.*

**Option 3 (Focus on Budgeting and Planning):**

> 幫助您規劃和管理美容預算，包括產品價格、護理費用、美容優惠等資訊。
> (Bāng zhù nín guī huà hé guǎn lǐ měi róng yù suàn, bāo kuò chǎn pǐn jià gé, hù lǐ fèi yòng, měi róng yōu huì děng zī xùn.)
> *Translation: Help you plan and manage your beauty budget, including information on product prices, care costs, beauty discounts, etc.*

**Option 4 (Short and Simple):**

> 美容消費相關資訊。
> (Měi róng xiāo fèi xiāng guān zī xùn.)
> *Translation: Information related to beauty consumption.*

**Which option is best depends on your needs:**

* **Choose Option 1 or 4** if you want a quick and general description.
* **Choose Option 2** if you want a more in-depth and informative approach.
* **Choose Option 3** if your blog focuses on beauty budgeting and planning.

Remember to choose the description that best fits the overall theme and purpose of your WordPress blog. You can also slightly modify these options to better suit your specific content. Good luck!