Ok, so I'll mention that I got my first bag in about 1995 (gift from parents when I was entering high school), so over 22 years my tally of 19 Coach "bags" doesn't seem SO bad, right? It's a good collection of various time periods, from vintage to Legacy, to some newer styles like the Nomad. I don't really count about 5 of these as purses/bags that I use and I'll explain more below.** I also have 10 SLGs, 10 fobs, 2 scarves, and 2 watches. I also just added some jewelry to my collection when the reserve sale was happening on FOS.
I actually have a spreadsheet that I use to track my bags, wallets, fobs, and so on. I created it years ago when I felt like my collection was getting too large and I had a lot of bags I rarely wore. Seeing them all just listed on the spreadsheet (with purchase price vs. retail price), it helps my mind to visualize the bags without actually taking them all out of their storage place

I have sold a ton of my Coach items over the past few years (not saying how many, but I had over 30 bags at one time), and this spreadsheet has helped because it's less "emotional" when I am making a decision to sell vs. keep. Also, the sheet makes me a little more thoughtful when adding to my collection because I really do visualize of all of the bags on that list that I should use more!!
I'm also not going to add how many "other" brand of bags I have since this thread specifically asked for Coach, but I do have a smattering of other designers, with
quite a few Longchamps...
**The 2 that I don't really think should count as "purses" are an old Transatlantic Messenger bag and my Addison bag (because they're not really daily bags and I only use them on occasion as briefcases or for work travel). Also, 6 of my purses are my vintage bags and I'm rehabbing 1 - I only use Willis, Patricia, and Convertible clutch regularly. I will always keep my original Watson bag because it was the gift from my parents