They. All. Fit.
And I never throw a bag away, so I've had to be far more careful about buying new ones. Instead, I keep all my old ones (much to the horror of my other half), and bring them out when I need a certain look, depending on season or mood, or just fancy a change.
At the moment, I am (re-)loving a vintage Gap red berry suede slouch bag, but I have also discovered a world of bag-making opportunities and know that, when I eventually get a sewing machine (and figure out how to use it), more bags will be mine again ...
Here are some bag patterns that I've discovered, and that I'm holding onto, for when my sewing get-round-to-it is sorted out...
The pleated tote bag created by Ellen at The Long Thread
The reversible tote bag designed by Novita at Very Purple Person
The Grandview bag created by Emily at The Boy Trifecta

The Monk's bag designed by Mari at The Purl Bee

The bow bag created by Nat at Made By Night
Any favourites here? And anything you love that one day, some day, you just know you'll make your own? Do share!