What is Convenience ?
Convenience is (noun) 1. the fact of being convenient I like the convenience of working from home. We bought the house because of the convenience of the area for shopping. at your earliest convenience as soon as you can easily do it Please return this form at your earliest convenience. 2. all modern conveniences, all mod cons all modern facilities such as central heating, telephone or electricity The flat is advertised for sale with all mod cons.
source: Easier English, Student Dictionary Upper Intermediate Level