That Wednesday thing!
Many Wednesdays for me have been dead but I just call that coincidence. There is no possible reason I can think of why a mid week day should not produce calls or clients. One of life's mysteries but not worth giving too much time to thinking about.
What I don't do is take every Wednesday off though! That law of sod will surely get me lots of regs wanting me on those Weds if I do that.
Wednesday were always productive for me for a while too. Better than Mondays and Fri