[akebono]

I'm definitely amongst the minority here as I still only single-table.

When I do single table, I also try to make a note of which players are multi-tabling. My assumption is that the players who are multi-tabling will be more distracted and more likely to use default plays. My blind-steal range for multi-tablers is a bit wider than for people who I think are paying closer attention. I also generally mark multi-tablers as skilled players so I have a bit more respect for their bets. (i.e. I assume they operate preflop according to the SSHE charts and are either value betting or betting to protect. I don't expect a lot of bluffing to be in their default strategy.)