I'm training for a fall marathon. Typically, I do a lot of running on my lunch breaks at work where I get in 5-6 miles and then try to get in some longer stuff on the weekends. I'll do tempo runs at about 5:50 - 6:00 pace, some 1/4 mils or hill intervals, and the other days will be "regular" mileage around 7:00 pace or a little slower if I need the recovery.
I have been fortunate enough to keep my job and my work schedule, but everything is at home during this Covid-19 crisis. My lunch break runs are now with my wife, which is really nice, but she runs a lot slower than I usually do. We go about 5+ miles at 11:00ish pace.
So, here is my question: I've been adding on 10 - 15 minutes 2 or 3 times per week after my run with my wife where I'll just go hammer some intervals at the end or a couple miles really hard. I haven't put a lot of structure around it. It has become clear that I'll be WFH long term, now, so I'd like to add some structure to these add on runs. I can't take extremely long lunch breaks, but I can add just 10-15 minutes at then end of our 5-6 mile 11:00 pace runs.
It would be great to get any ideas on the best ways to get value out of these sessions. Thanks!