Cass
Data & rankings
Cass runs the numbers behind TravelMaxing: visa matrices, cost indexes, weather windows, and every dataset a claim on this site is built from. Allergic to travel-industry superlatives; if a number appears here, Cass sourced it and will show the receipts.
◉ Articles by Cass
- Trip Planning · 6 min readSchengen's 90/180 Rule: A Week Outside Does Not Reset the Clock
Three short visits can use all 90 Schengen days. A separate itinerary can allow 50 more days even when only 20 appear unused at arrival. Two worked 2027 calendars, checked against the official EU calculator.
- Trip Planning · 6 min readThe Comfort Premium: 99 Countries Under $30 a Day Become 48
Our cost estimates put 99 destinations under $30 a day at bare minimum, but only 48 at the intermediate tier. Thailand and Mexico swap order. So do Portugal and Spain. The budget tier changes the trip, not just the bill.
- Trip Planning · 6 min readDays, Not Doors: The Passport Ranking by Time You Can Stay
Passport indexes count how many countries you can enter. We summed how long you can stay: 11,031 visa-free stay limits, Schengen counted once. The US jumps from 41st to 1st, Singapore falls to 19th, and Georgia gives most of the world a year.
- Trip Planning · 6 min readThe 2026 Tourist-Tax Ledger: A Week for Two Costs €15 in Fees in Bali and €147 in Hawaii
One trip, nine places: 7 nights, 2 adults, a €150 room. Fees alone run from €15 in Bali to €147 in Hawaii. Bhutan charges €1,230.
- Trip Planning · 6 min readThailand Cut 3,256 Visa-Free Days: Which Passports Lost What
Thailand's 60-day exemption ended on 15 September. We diffed the visa matrix: 97 passports went visa-free to 78, and Thailand fell from 58th to 135th.
- Trip Planning · 6 min readThe Attention Recession: Travel Reading Fell 17% in a Year
We pulled two years of Wikipedia pageviews for the tourism article of 183 countries: 2.07 million reads, median down 16.6% in twelve months, twice the decline of Wikipedia itself. Only 22 countries gained attention. Almost none of the winners are where the value is.
- Trip Planning · 7 min readThe Link Rot Audit: 156 of Our 1,483 Sources Died in Three Months
We link-checked every citation behind our 200 country guides. One in ten was dead — among them five governments' visa portals and the official tourism sites of Egypt, Lesotho and Tuvalu. Who kills travel links, how fast, and why the rot has a geography.
- Weather · 7 min readThe Sky Audit: We Tested Our 2,388 Weather Ratings Against 363,374 Days of Data
We pulled five years of daily weather for the capital of every country we rate and checked whether our best/avoid months match the actual sky. Verdict: 92% agreement, one coherent cluster of dissent, one rating we now think is wrong, and one lesson about capitals.
- Trip Planning · 6 min readThe Exchange-Rate Ledger: Your Euro Buys More in 11 Countries This Year, Less in 20
We pulled 12 months of exchange rates for the currency of all 133 countries in our cost dataset. Only 31 moved more than 5%, and two-thirds of those moved against you. Then we subtracted inflation, and Turkey and Argentina flipped from best deals to worst.
- Weather · 5 min readThe Value Calendar: A Country Under $15 a Day in Peak Season, Every Month
We crossed 2,388 monthly ratings with daily-cost floors for 132 countries. There is no month of the year with fewer than 16 countries that are both in their best season and under $15 a day. Off-season discounts are for people who refuse to change destination.
- Trip Planning · 6 min readThe 90-Day Rot: We Re-Verified 82 Country Guides. Two-Thirds Were Already Wrong.
In May we verified every fact in our 82 published country guides. In August we checked them all again: 54 needed corrections. Fees, portals, one war, one relocated Grand Prix, and three errors that were ours.
- Trip Planning · 6 min readThe Worst Month to Travel, Computed: August Fails in 77 of 199 Countries
Our when-to-visit dataset rates 2,388 country-months. August collects 77 'avoid' ratings, the most of any month, and the fewest 'best'. December wins the calendar. March is the safest. Everyone books August anyway.
- Trip Planning · 7 min readToll Booths: One in Seven of the World's Visa-Free Trips Gets a Price Tag Next Year
13 countries already charge for entry they call visa-free. When ETIAS launches, 1,770 visa-free entries (13.8% of the world's total) get a €20 form overnight, and the toll-booth club grows to 43.
- Trip Planning · 6 min readOne-Way Doors: A Third of the World's Visa-Free Travel Never Comes Back
We mirrored all 12,871 visa-free entries in the July 2026 passport matrix. 4,451 of them are one-way. Ranked: who holds doors open for passports that stay shut.
- Trip Planning · 9 min readTravel Agency vs DIY: We Priced the Same Europe Trip — €666 Gap
We priced the same 3-week, 5-city Europe trip with two agencies and as a DIY plan. Gap: €666. Honest breakdown of when each approach actually wins.