I *need* my database to keep track. My current count looks like 35 strings (dulcimers, guitars, banjos, 'ukes, mandos, o'uds, etc), 59 winds (mouth and hand organs, fipple flutes, etc), and 33 'others' (percussion, synths, etc). We used to have a church organ and spinnet piano but those just took up too much space. And I had to leave an indigenous standup bass in Guatemala. Darn.
I am fairly active at Ukulele Underground ; my .sig there is a fairly complete list of my stringed axes. Right now I *mostly* play mandolins and various uke-like objects. I've played guitars for over a half-century although I began with... mountain dulcimer! (Well, clarinet a few years earlier.) Anyway string-wise I'm primarily a folk-blues guitarist with excursions into dobro, Puerto Rican cuatro, Hawai'ian lap-steel, the aforementioned 'uke-oids (4-, 6-, 8-, 10-, and 12-string variants) and mandos, and other mid-size lutes in various tunings. And one of my dulcimers.
Tunings! That's what I'm really into. 'Ukes are great because of all the different re-entrant and linear possibilities as well as open slack-key. I play mandos in standard Italian tuning, or the top course slacked to Irish tuning for singing drones, or take it down three 1/2-steps for blues. in E. My guitar-like objects may be standard or dropped or open or straight 4ths. But I first learned tunings from... Jean Ritchie's dulcimer book, all those modes! I think she corrupted me.
I may fairly often be heard blowing a Native American flute or Irish pennywhistle, or trying to master Rhapsody In Blue on chromatic harmonica, or thumbing a kalimba, or just finger-tapping glassware and ethnic pottery as if they're bells. I just cannot stop.