I use grid shuffle, lay top cards of you deck in a 4 by 4 grid, then place cards from the top or bottom of your deck randomly on top of those. When you run out of cards, start stacking one pile on top of the other until you are left with one. Repeat if you wish

I usually wait until I have 2 stacks, then poker shuffle. And I usually preface and end my shuffling with the sideways cut. Holding the deck long edge towards your face, cut the back or front of the deck into the front, middle, or back of the deck as much as you want.
I'm pretty thorough with my shuffling, aren't I?