For DE blades, I've purchased them in lots of 100 or 200 (Personna Comfort Coated before AccuTec changes) from Amazon, eBay, Italian Barber (Nacets on sale)... That might be it.
For AC blades, I did buy a few single packages of 15 or 20 from Amazon US... but I got great deals on boxes of 10 packages from Amazon Japan and a Japanese supplier on eBay.... $8 or $9 instead of $19 to $24 each.
For AC blades, I did buy a few single packages of 15 or 20 from Amazon US... but I got great deals on boxes of 10 packages from Amazon Japan and a Japanese supplier on eBay.... $8 or $9 instead of $19 to $24 each.