PCB mount thermocouple connectors are really useful because most thermocouples come with a little plug instead of bare leads, and bare leads suck anyway. [Here’s what I’m talking about. These things are not worth $3 each or whatever, I think SF could do much better.
Cleaning brushes intended specifically for cleaning flux off PCBs, such as [Techspray #2032. These are the only things to use for cleaning PCBs IMHO. At nearly $8 each with a stupid MOQ you are looking at $50 or so just for some brushes, again not really worth the price IMO.
Okay I’ll add one more: teflon insulated stranded wire. This stuff is awesome, the teflon stands up to the brutal heat from soldering very well.
Go sparky go](http://www.techspray.com/images/2032f.gif)](http://www.newportinc.com/Products/AccCalib/PCC.htm)