Screen protectors?

What kind of screen protectors are people using here? I'm kind of losy to put on screen protectors. So maybe not the most expensive if I fail but not the cheapest either. Any thoughts about it?

Thanks

 

By the way it's for the dsi, sry about that.

 

brand name HORI non glue biased Thin film protects screen removes without any residue left behind, focalprice.com wsdeal.com or ebay. whatever country your in, they have been made for ds lite or dsi, i buy a few packs seems they so cheap change them every now and then http://www.wsdeal.com/GN221T/DSi_Professional_LCD_Screen_Protector.ws

 

Thx for the tip. I've made an order from the homepage and they were cheap too. Hopefully I won't have any trouble putting them on