Shipping
Royal Mail Large Letter vs Small Parcel
The thickness cap on Large Letter is 25 mm. Miss it and Royal Mail consumer postage steps up to Small Parcel.
Plaintools guides
The same size bands, fee stacks, and tax splits as the calculators, written out. Estimates only; the live carrier, marketplace, or HMRC page still wins.
Agent recipe: /guides.md.
Shipping
Shipping
How Etsy fees work for UK sellers
The 6.5% transaction fee applies to postage you charged the buyer, not just the item price.
Shipping
Etsy vs Vinted fees for UK sellers
Same jumper, two fee models: seller commission versus buyer-side protection.
Shipping
Dimensional weight divisors by carrier
The divisor, not the tape measure, decides whether a light box is billed as a heavy one.
Convert
Convert
Why Windows cannot open iPhone HEIC photos
HEIC is a HEIF still. Windows Photos often has no codec. JPEG is the interchange format.
Finance
Finance
GST inclusive vs exclusive (and UK VAT)
Same arithmetic as VAT. India then splits the tax for intra-state invoices.