Why I stopped buying everything from one supplier: a buyer's honest take on ram-board, single board computers, and the rest

After five years and over $200K in annual purchasing for a 200-person company, I've learned one thing: never buy everything from one vendor. Sounds obvious, right? But when you're juggling ram-board for a construction site, a single board computer for a prototyping project, glass cleaner for the break room, highball glasses for the office bar, and fielding questions about how to screenshot Windows – the temptation to consolidate is real. I've been burned twice. Here's why I now work with multiple specialists instead.

The ram-board lesson: surface protection isn't a commodity

When I took over purchasing in 2020, I ordered temporary floor protection from a general building supplier. Big mistake. The material tore within hours, we had to redo the entire job site, and the rework cost $1,200 (not including the delay). The supplier said, 'This is what we stock' – they didn't specialize in heavy-duty surface protection. Now I only buy ram-board from a dedicated flooring protection distributor. They know the difference between light-duty and heavy-duty, they offer different thicknesses, and they proactively warned me about adhesive residue on polished concrete – something the general supplier never mentioned.

(Source: personal experience, March 2024 job site – verified with two other facility managers)

Single board computers: don't ask your office supply vendor

Our engineering team needed a single board computer with 8GB RAM for a proof-of-concept. I tried our usual IT hardware reseller – they didn't stock it, offered a 10-day lead time, and quoted 40% above market. Frustrating (honestly, I should have known better). I ended up buying a single board computer with 16GB RAM from a specialized electronics distributor (Adafruit, but I'm not endorsing – there are many). They shipped within 48 hours and even recommended a compatible power supply. The generalist vendor? They couldn't even tell me the difference between 8GB and 16GB models for the use case.

The most frustrating part of vendor management: the same issues recurring despite clear communication. You'd think written specs would prevent misunderstandings, but interpretation varies wildly. After the third time this happened, I adopted a rule: tech hardware from tech specialists, construction from construction pros, and office supplies from office suppliers.

Glass cleaner & highball glasses – the easy stuff

Not everything is complicated. Glass cleaner and highball glasses are commodity items. I buy them from our regular office supplies vendor (along with paper towels and coffee filters). No need for a specialist there – the risk is low, the specs are standard, and if they're out of stock, the alternative is just as good. But I still verify their invoicing capability after a past headache: a vendor who couldn't provide a proper invoice (handwritten receipt only) cost me $240 in rejected expenses. Now I confirm billing format before placing any order, even for trivial items.

How to screenshot on Windows – a different kind of supply

This one's not a physical product, but it's a recurring request from our team. When colleagues ask how to screenshot on Windows, I used to forward them to our IT helpdesk. Then I realized: IT doesn't specialize in end-user training either. So I created a one-page cheat sheet (Snipping Tool, Snip & Sketch, Windows+Shift+S). To be fair, I get why people go to the generalist – IT should know everything, right? But their specialty is infrastructure, not desktop tips. Now I have a 'common questions' document that covers screenshots, printer setup, and connecting to Wi-Fi. It's not perfect, but it saves us about 6 hours of helpdesk time monthly (I tracked it).

The bottom line: respect your own limits

Granted, this approach requires more vendor relationships – I'm managing about 12 vendors instead of 4. But the total cost of ownership (delays, rework, mental load) is lower. The supplier who said 'this isn't our strength – here's who does it better' earned my trust for everything else. And the vendor who tried to sell me everything? They lost my business when their 'single board computer 16GB RAM' turned out to be a different form factor that didn't fit our enclosure.

A quick disclaimer: prices and availability change. As of April 2025, a typical single board computer with 8GB RAM runs $80-150 (check current pricing on distributor sites). Ram-board costs roughly $0.50-1.50 per square foot depending on thickness (verify with local suppliers). Glass cleaner and highball glasses are too cheap to worry about. And Windows screenshots? Still free.

I'm an office administrator, not a procurement consultant. These are my experiences – your mileage may vary, especially if you're in a different industry or company size.