I'm on most nights from 6-8pm EST and then sometimes from 10-11pm EST.
I always check my Friend's List to see if there's a game I can jump into (Join Session In Progress). If not I just play alone. But, I continue to check my FL between rounds. I'll accept an invite from someone if it's feasible. Sometimes I get invites just as I'm about to quit or while I'm in the middle of a match. If I'm playing well I won't quit because I want the points! LOL!
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"All religion, my friend, is simply evolved out of fraud, fear, greed, imagination, and poetry."
Edgar Allan Poe