Salad in a Jar

Have you seen the Salad in a Jar frenzy on Pinterest?    Many times I buy salad makings and then never assemble them due to time laziness and then the ingredients go bad.  I bought a head of romaine, a cucumber, some baby tomatoes and green peppers for an easy Salad in a Jar.  I plan on adding some crunchy nuts and cheese when the hubs and I eat dinner together later on.   I'd really like