Want 7-seg LED displays? Some other kinds of chips? Breadboards? Test instruments? I mean obscure things that most soccer moms don't order -- Amazon has it.
I find Amazon is frequently not the best source for any of those. I'm UK based and find RS pretty good for a lot of tech stuff. It's not as good as digikey or mouser for components (a smaller range, though sometimes they have sometheing the other's don't), and has free next day shipping on any size of order.
It also has the RS Pro brand which is basically unbranded cheapass stuff, but where they've checked them to make sure they're not too hokey. Actually, I've never been let down by the RS Pro brand and I really like the solder. The hacksaw blades are decent and the jobber bits are acceptable too. Nothing fancy like cobalt steel in that range, but decent HSS bits which aren't made out of cheese.
It's generally a bit more expensive than the cheapest stuff you can find, but awnsers the question "is this reel of suspiciously cheap filament from china actually ABS or is it 50% sawdust and cat hair?". Or "is this IEC plug actually safe?". That kind of thing. In case you can't tell, I've become something of a fan ever since they fixed their website so it didn't sort component values lexicographically rather than numerically...
Other stuff I tend to get from ebay. RS likes to ship some stuff, especially screws for some reason in quantities of infinity giving a great price per unit, but not such a great overall price for me, since I have no need for 50 quids worth of M4 screws right now. Plus their range of screws is kind of small. Ebay onthe other hand has almost every screw under the sun.
I say almost every kind, because eventually I found one (very small 1.5mm self tapping screws) for which I had to resort to AliExpress.
But ebay does most of the things I need, and mostly from ebay stores, not general bids.
And funnily enough, Maplins has been way better than expected recently.
I almost never buy anything electronic related from Amazon now. I often check, but there are almost always better options elsewhere.