Yes, I get the generic Focalin, cheap with no prior authorization (dexmethylphenidate). It's pretty subtle, but so far I'm encouraged by extra reserves of energy when I need them.
I'm still needing to lie down regularly with fairly deep fatigue, but it's been more like a meditation, without necessarily narcoleptic (immediate) sleep. Interesting.
As for mental clarity, I've been enjoying some of the racetams (especially the quasi-racetem Noopept). Stacked with 50 mg or so of anhydrous caffeine -- which seems more stable and longer-lasting than, say, coffee -- I've definitely felt like I now have a new set of helpful tools that aren't exactly life-changing, but are significant management aids.
From Powder City I've also been experimenting with a lot of other combinations -- too many to list here. But some that have seemed particularly helpful: NALT (N-acetyl L-Tyrosine), Alpha Lipoic Acid, ALCAR (Acetyl L-carnitine), D-Ribose, and Sulbutiamine. Also to calm the nerves before bed: L-Theanine, picamilon, and, occasionally, phenibut (when I really want a pleasant sedative effect).
For me, taking notes is crucial because this new hobby involves so much trial and error (with some combinations making you feel worse, not better) that I would miss patterns unless I could review the effects of multiple days and weeks. For instance, I discovered I can't seem to tolerate the innocuous-sounding L-Tryptophan before bed, possibly because it interacts negatively with my Cymbalta.