I recommend the spigen Crystal Ultra HD screen protectors, they run $9/$10 for 3. Super clear and give great protection. Also, they are a bit more light weight than tempered glass. Also, I have a caseology leather/tpu hybrid case. Sort of keeps the phone feeling like the way it does without a case.
HTC One (M8)
Proud Android user since 2007 (G1)!
Past Devices: HTC Wing(MDA), G1, Mytouch 3G/4G, iPhone 3G/3GS, MyTouch 3G Slide, HTC HD2, BB 9100, LG G2x, Sensation, Samsung Galaxy S III, Note 2, Samsung Galaxy S II, Note 3