I have a couple of aeriel cables to put up, which will need to run around the outside of the house. The thing I hate when I've done this before, is using those nail-in cable clips which you usually nail into the mortar between bricks. A lot of the time, the mortar disintegrates and makes a right mess, they don't go in securely, and if any need removing later half of the mortar of the whole house seems to come out or work loose! Are there any alternatives to these, or any other methods used perhaps. I've been looking for those screw in type but haven't found any yet, also thought about small blobs of silicone along the cable to secure it to the wall. Thanks.