Mar-Spanish superstitions

Nowadays, Spanish people are not very superstious but we still preserve some old beliefs. Some good examples are: If you break a mirror, you will have 7 years of bad luck or if you see a black cat, you will have a bad day. Most of these supertition are related with bad luck because people like to blame others for their misfortune. If someone sweeps your feet, you won't get married or if you pass under a ladder, you will have a bad day are the main commond and popular supertitions in Spain related with bad luck. We also have another belief related with makes dreams real, for example if you use clothes for the first time, you should make a wish or if you open a can of CocaCola, you should think in a wish and break the tab at the same time. I guess that currently these last two supertitious are more common girls...