So I finally went and looked...I figured it had to be Studio Flergs since I followed her around digland for a while until she landed here at Sweet Shoppe Designs! Probably my oldest kit that I've yet to use is Wild Child, when I bought it December 2016
And the reason why I haven't used it was because I never moved Megan's folder over to the SSD folder and there were about 20 of her older products hidden from me these past few years!
All the other older products that I have are samplers, or something that I maybe more than likely wouldn't use in the first place.