Me too. I use a Galaxy Note and use 2 registered gmail accounts. When you want an app and you have to pay for it, it will tell you how much it is. Many apps are 'lite' so they're usually free.
The only app I won't use are banking ones. Barclay's have introduced a new app that allows you to pay for small items such as your share of a curry, as the ad goes!. But I don't want Bob Diamond to have anymore of my hard earnt cash thank you!