I tend to take a dare off of the dare thread and apply it to whatever I'm writing immediately if I start feeling like whatever I'm writing sucks. Because sure, it might suck but it'll get you thinking and it'll you can always edit it out when you do edit.

And then, sometimes, I switch pov to test out if I can write better in a different one or tell myself I can't use the word "awesome" or something to make it fun and exciting again.