Cordless Cellular Blinds
Search online. Go with a name brand manufacturer that has decent motors, especially for the wide ones. An interior designer is going to have better access to options for you than you will find---at their fingertips. They are not expensive and will probably just take their commission, buying these wholesale for you, and marking them up to what you would have paid retail.
I use a real store called the Blind Man here as an alternative designers. All he sells and installs is blinds of all kinds.
The cordless ones are nice, and the remote control ones will really impress your friends. Personally though? I have not lost a pet or a client kid in corded blinds yet if the cords have been trimmed. Expect to pay some money for the cordless ones. And hope the dog does not run off with the remote.