I don't know if you all do this but I find it helpful to create my shopping cart with my fishing partner.  They may be able to spot gleaming holes in your tackle, or remember baits and colors that worked in a previous trip/tourney that you have forgot about.  Just a trick I use, 2 brains are better than one!  Keep this in consideration as Black Friday approaches!

My cousin is my fishing partner and we always buy stuff together.

I buy way more than normal if I'm shopping with a fishing buddy, so I try to avoid that. 

I both fish and shop alone.  My arsenal of lures is quite small, I don't get skunked too often.  Even fishing my landlocked ponds I catch the same fish (some of them have distinguishing marks) on the same lures.  Either my bass are very stupid or the lures really don't make all that much difference.  When they are on they'll hit your mother's old garter belt, when they are off it just takes a little more effort.

I replace a lure when I lose it, usually the same exact one.

There are different ways to shop for tackle.

 

Having a friend give you input is one way.

 

Going alone is another.

 

Whichever one works for you is fine.

Buying tackle is a religious experience for me. I will take input but when it's time to buy its just me and the credit card.

I buy with my brother, but mostly to split the costs of buying in bulk.

We do share some tackle recommendations to though, especially what has worked in different places that may slip our minds.

I tend to buy tackle for techniques that will compliment my partners strengths. We each have certain approaches that we like and they compliment each other for the most part. Rarely do we fish the same lure unless we've established a pattern that really is producing.

I do bounce ideas off my partner most times before buying new tackle. Its good to get a second opinion.

I always buy too much to even put in the boat, so much so that if I bring someone to go to BPS they always make me feel like I am stocking up for the apocalypse. 

My partner & I fish the same so we order in bulk, plastics by the hundreds, everything else by the dozen.

I buy way more than normal if I'm shopping with a fishing buddy, so I try to avoid that.

This right here, I spend more than enough on my own. At least I know I'm not the only one that has this problem.