Vibrator tips

So I got my first vibrator yesterday. It's was one of those 30 dollar ones at Walmart because I didn't know how much I would enjoy it so I didn't wanna go too expensive. It's a plusOne dual massaging vibrator so it does simulation inside the vagina as well as the clit.

Turns out I love it but would like some tips on good positions to use it in besides laying on my back. It can be solo or with a partner. Just whatever positions you have discovered works well for you.