I went out for a couple of runs using my old Solomon goretex trainers, I'd forgotten how good they were - great shoe. Conditions weren't best suited to fast times but it got the heart rate going and got some much needed fresh air in the lungs. I had a couple of games of squash / rest days from the bike. Spent a decent amount of time on that spin bike that I thought was a waste of money (now looks like it might have been a master stroke - thanks Russell) and of course, I took my new (new to me) mountain bike out for her maiden voyage.
Think it might be the most fun I've had on a bike for a while and trying to pedal up those short sharp hills with the back wheel spinning away certainly got the lactic fired up. I pulled together a short video (in the "New Adventures" section), I don't think it's going to receive any oscar nominations but it was a bit of fun.
Back to the spin bike / turbo trainer or whatever anyone has for indoor cardio. Not sure if it's just me but I have problems maintaining a heart rate above about 130, where as outside I struggle to keep it below 150-160. And indoors 30 mins feels like an hour and an hour feels like an eternity. The only thing I can console myself with at the moment is that every hour spent on that thing makes the hills of the Cairngorms just that fraction easier, and therefore more enjoyable!