I think Midori Green safer than Etbr. You can mix your sample or ladder directly with Midori Green and run electrophoresis.

Hope this link is useful:

http://www.bulldog-bio.com/midori_green.html

SybrSAFE is dreadful. It costs more than EtBr, doesn't stain well, and gives too much background fluorescence in your gels. I had to use it once in a teaching lab and I'd never use it again.

Honestly, I'd rather use EtBr. Just practice good safety habits (gloves, goggles, etc.) and dispose of it properly.

I agree with Katie...

Unfortunately, most "safe" alternatives are not efficient as EtBr!! and in many occasions you have to do EtBr as additional step to get high quality outputs!