Sure it’s nice to have your groceries delivered now and then. Ditto dinner. Want to stream your favorite movies? Why not. Curated clothes and books sent to your home? Yes please. But too much convenience can cost you.

“It’s very easy for consumers to lose track of what they are purchasing,” said Kate Ryan, a director with TIAA Financial Solutions.

There has been a proliferation of subscription services in recent years. Throw in auto-billing and the ease of mobile payments, and you can see how some expenses can fall under a consumer’s radar.      MORE