Toilet roll!

What kind of toilet roll do you all use? When we got our van friends told us not to bother with the toilet roll designed for caravans as it's too expensive.  However, we've just found our toilet full and the sensor hadn't come on.  My partner went to investigate and found the sensor to be covered in loo roll.  It hadn't broken down and had formed big clumps.  We have used a thicker loo roll this time.  Would you suggest buying caravan roll?