I've tried the tips from both videos below and it really works. Feeling amazing.
My hips have been feeling especially tight lately so this vid (check out the original site here) came up at just the right time. I've always incorporated cossack squats in my leg day warmup but the inside leg lift was something new that I haven't tried before.
The exercise looks a bit weird but it does wonders for my tight hips. Give it a try.
I've come to a point where doing a 20-reps of 40kg barbell glute bridges doesn't give me the desired burn anymore. After reading this and this, I realized it was due to anterior pelvic tilt. So in this video Bret Contreras shows how barbell glute bridges could become more effective when you flatten out your lumbar spine when doing them.
I gave it a go last night and oooo yeahhh... the burn's back, baby. It's back!