I tried the salt trick recently, now I'm a fan. A few grains of salt sprinkled onto the glue really does helps the joint stop slipping as you crank up the clamp pressure. It takes a lot less salt than you might think.
I do between 135-200 orders per year on amazon. Pretty much everything from socks to cases of Monster. If I find something cheaper elsewhere, but it's within $10 or so bucks, I use amazon. A lot of my computer parts that I'm buying right now were like that. I will only buy from new egg or amazon for such things. I signed up for prime on day 1, and consider it the best investment ever.
In my old place (pre-wife) I had a room set aside for boxes, until my parents noticed and we spent about 10 hours breaking them down. So yeah I love me some free shipping but more than that, it's that amazon ALWAYS gets me the package in 2 days or less. And when they don't, they'll refund part of my order.
New Egg is also amazing, I ordered a new 28" monitor from them 2 weeks ago and they got the thing here in 30 business hours. Shipping was minimal. In fact it may have been free as well.
Seriously though Jordan...use your new bench and your new fancy Gramercy holdfasts to build yourself a new router table...then make yourself some new dogs. Woodworkers don't buy those, they build 'em, and you know this, man.