Here is another little gem....
If you consoldiate them through the feds, you can take a "forebearance" anytime you like. You can request it online, and it takes zero paper work. The forebearance allows you to cease making payments for up to a year with no penalty, but the interest still accumulates. If you have a rate in the 2s, I'd take a forbearance if you aren't making much money or have a "life issue."
You can request them back to back as well.