Just something I got used to do. My right palm is always conveniently hovering above the right Ctrl, Alt and L, Enter keys, making those combos easy and instant.

After hitting Ctrl+L, I usually do one of these: 1) "Enter" to discard current page; 2) "Alt+Enter" to open in new tab; 3) "Ctrl+Enter" to open in new tab but keep focus on current page (e.g. read later); and 4) "Esc" if I got an answer from the address bar (math, currency, history, already open page, etc).