My favorite would be LSD and mushrooms. I did it once untill now and it was utterly insane.

Around 100mics of acid or one hit was consumed and around 30 min in i ate 2.5g of shrooms. On each dosage alone i would get maybe a light to medium trip. Combined it was an explosion i was not prepared for.

After 30 mins of acid ingestion i still could not feel it coming. Once the shrooms where in the coming up was quite intense as both started to take ahold of me simultaniosly. The OEV‘s where mesmerizing. A pink cube appeared in front of me and started to expand into al this other indescribable amazing forms. I closed my eyes and vivid 3D imagery of a gemotric landscape unfoldedin front of my inner eye. This went on for some time then me and my wife layed in the bathtub(she consumed 3,5g of shrooms) and we talked the whole night about us the universe we called old friends on camchat which made for some ridiculuos and bizzare moments to explain the day after. But o well it was fun. We cried laughed and had the most intimate night we ever experienced.

I must say i was a little drunk when i dropped the acid and probably sobe would have not eaten the shrooms atop of that. Im glad i did and will probably do that again in the near future

Peace and Love