I am a long time collector but have been off and on many times. I'm on again!
Originally focused on US stamps, then deep into covers (Space, X-Flights, CFPO, lots of misc). More recently into WW (by quantity over quality - hinged in many Scott Int Albums). Now, more back into US at least to 2000 or so ... not sure about very modern issues.
Been reading tons here but have a question or 2 to post.
Oh, also an avid coin collector: Bust Half Dollars as a specialty and World Crowns/Talers before 1700.