A number of years ago I was out and about the fine metropolitan city I currently reside in, when I suddenly felt an overwhelming need to daven. I can't tell you why or what, just that I felt the need to commune with Hashem, but not alone.
As it was a summer day and the temperature was well over a 100 I was dressed in shorts and a t-shirt. I was momentarily concerned about going to shul dressed that way, but two things stopped me from running home to change.
First, there wasn't time to change and still make the minyan and more importantly to me it is nobody elses business how I dress. If I am coming to shul in clothes that cover my body are not unnecessarily provocative, do not have obnoxious slogans or whathaveyou, then it is between me and Hashem.
When I arrived at shul I quickly hurried to make the minyan when I was accosted at the door by someone who had decided to serve as the gatekeeper of who should or should not be allowed to enter.
He blocked my path and began to chastise me for not being respectful, for showing up in this fashion in his eyes was a complete affront to all of the members and to G-d.
I don't do well with being told what to do by anyone so I politely asked him to step by and when he wouldn't move asked the others in the minyan if there was anyone in there who could cite chapter and verse as to why their tefilah was more important and or more likely to be heard than my own.
It made me sad to have this fight, but darn it, I hate people who think that fancy trappings, gold wrapping paper, silver bells etc make a difference. Cliche or not, it is what is inside that matters.
None of these people knew whether I was rich or poor. I could have been wearing the finest clothes I owned, it really shouldn't matter.
A suit and tie are worthless if there is no kavanah in your davening.