forgetting a dose

oof....  I left home today and halfway to work I realized I had not taken my Adderall.  I felt like my brain was a wet sponge.  I made stupid mistakes, thought it was Thursday (instead of tuesday) for an entire hour. Almost got hit by a car crossing a street... And just plain confused/exhausted the whole time.  20 minutes seemed like an hour and by the time I got home and tried to have a conversation with my husband, I couldn't form a sentence.


Any advice on what to do when you forget a dose and you don't have any with you to take?  Just load up on caffeine or energy drinks?  I've never been able to drink one of those because they taste so bad, but today I would have if I'd remembered they existed and had the money to get one.