How to Build a Shopping List for Friends' Japan Requests: Breaking Down Specs, Quantities, and Splitting Costs for 4 Item Types

The thing most likely to go wrong with buying on someone's behalf isn't the math — it's finding only a similar-but-not-identical version in stock. Before you leave, agree in advance on whether other colors, different sizes, or other retailers are acceptable, and whether to just skip an item if it goes over budget. Without an agreed-upon substitute, don't swap in a larger bottle or a two-pack on your own on the spot.

A list is best when it includes the product page and a screenshot of the packaging, but don't rely on photos alone. A photo may just be showing off the product line — the full model number, capacity, and shade written out in text are what you should actually verify against.

Aqua Rich Watery Essence Sunscreen 70g: Japan list price ¥968, converts to about NT$201; Taiwan page lists NT$249, Japan's list price is about NT$48 lower.

CEZANNE Tone Filter Highlight 01 Filter Beige: Japan list price ¥693, converts to about NT$144; Taiwan page lists NT$388, Japan's list price is about NT$244 lower.

Write the sunscreen request as "Biore Watery Gel Lotion, 70g, single unit" to avoid getting the other watery gel essence version; write the brightening powder as "CEZANNE Tone Filter Highlight 01 Filter Beige." If a friend only gives you a brand name, that's not enough to act on as a buy-for-you request.

Calbee Limited-Time Offer Shrimp Stick Four-Pack (48g): Japan list price ¥108, converts to about NT$22; Taiwan page lists NT$65, Japan's list price is about NT$43 lower.

Men's AIRism Cotton Mesh Polo Shirt (Short Sleeve): Japan list price ¥1,990, converts to about NT$413; Taiwan page lists NT$790, Japan's list price is about NT$377 lower.

If you want to buy two four-packs, write it as "2 four-packs = 8 small bags" to avoid it being read as buying two small bags. For apparel, list size and shade separately; the price pairing in this piece doesn't mean every size is in stock, and you can't infer which size a friend wants to wear from another product's size.

One unit each of the four products totals ¥3,759 based on the snapshot, converting to about NT$780 using this site's exchange rate. This total is only for confirming a budget — it hasn't been combined into a same-store promotion or checked for tax-free eligibility.

After buying, log each receipt's yen amount, quantity, the discount actually applied, and the payment method item by item. Agree in advance on how to split any shared packaging or shipping fee; don't deduct the whole receipt's discount from every person again. Keep cash and card payments recorded separately, and don't treat this article's reference exchange rate as the settlement rate for every transaction.

Keep four possible outcomes on the final list: "bought it," "out of stock," "over budget," and "wrong spec." This makes it easier for everyone to confirm than forcing a purchase of something that just looks similar, and it cuts down on back-and-forth messages during the trip.

TravPrice's tracking list is stored in the browser you're currently using, with no account sync; if travel companions need to check it together, use a shared text list or screenshots that everyone can access instead — don't assume the same data will automatically show up on another phone.