I bought mine from Rogue Fitness. A little pricey but I've had really great luck with Rogue, like what the company stands for, and they ship same day you order which is nice for impatient people like myself.

I have the CFF plates and I quite like them except the paint is a little shoddy. Fun fact- CFF is nearby me and our gym has tons of their products. I ordered mine off Amazon then once day I was putting them on the bar and looked at the flag on the wall that said "Christians Fitness Factory" and put 2+2 together. Pretty sure I had an actual light bulb over my head.

Now to google "rad roller." I have a rumble roller but sometimes I'm not weeping copiously enough when I use it.

The ones I bought online were $60, plus $11 postage to my sister's house. I couldn't find any others anywhere online here in Australia. And I don't have the focus to find such things in a hardware store!

I bought 2" washers from the hardware store.

Same.

They're about 0.6-ish lbs each. Two washers on each side gives me about a 2.5 lb increase. I purchased 6, which means I can take it up by 1.25 increments to roughly 3.75 lb if need be.

It's not exact, but close enough of an approximation to continue making progress by something less than 5 lbs. And that's all I need. If I clamp them in, they're stable and don't go anywhere. Absolutely can't beat the usefulness to price ratio.

We just happen to have a Fastenal store in town, which is where I bought them from.

I bought 2" washers from the hardware store.

Same.

They're about 0.6-ish lbs each. Two washers on each side gives me about a 2.5 lb increase. I purchased 6, which means I can take it up by 1.25 increments to roughly 3.75 lb if need be.

It's not exact, but close enough of an approximation to continue making progress by something less than 5 lbs. And that's all I need. If I clamp them in, they're stable and don't go anywhere. Absolutely can't beat the usefulness to price ratio.

We just happen to have a Fastenal store in town, which is where I bought them from.

Dani, is there a specific size hole on the washers to fit on the Oly bar? I really need to get some fractionals and like the idea of getting them from my local hardware store.

The hole is 2". It is made to go on a 2" bolt.

Just ask for help.

^^ Yep. They are 2-inch diameter washers. Actually just a hair over 2 inches. Fit over the Oly bar somewhat loosely, but if you clamp them in with your plates, they won't go anywhere.

Here are the ones I have:
http://www.fastenal.com/web/products/details/33038?searchMode=productSearch&zipcode=&filterByStore=&filterByVendingMachine=

Here's the most extensive article with the most ideas/resources on microloading I've come across so far:
http://homemadestrength.blogspot.com/2011/05/micro-loading.html