To help remedy this, I could consider a gym membership but I don't think I would keep it up and those memberships can be expensive plus you have to wait for machines to become free and then try to look as if you know what you're doing even when you don't. No, a gym is not for me, much too public and would make me feel inferior compared to the other men lifting large weights and looking all sweaty. I just cannot see myself driving to the gym in the cold, dark winter months.
I purchased a second hand Pilates book from a charity shop and got a few exercise out of it. I also purchased an exercise mat from Argos for £15.99 and I'm very happy with it. I unroll it by my side of the bed, so you don't need much room for one.
I bought a resistance band and a wobble board from Tiger, less than a tenner for both. You can do so much with a resistance band, they are awesome things and very cheap (£3 I think). At first I wasn't sure about it but after a few workouts I am impressed. The colour is pink, which is slightly off-putting but it does the job. The other thing I purchased from Tiger (a great shop) was a wobble board (plastic, £5). You stand on the board and tilt it just using your feet or you can try and balance it in the centre without the edges touching the floor.
Lastly, I have purchased 2 kettlebells (£4.99 and £15.99) and this is all I intend to spend for a while on exercise. The other option I have is to go to the local park, which is great because they have machines to practice on. You also get the benefit of being in the open air. It is very public but the people in the park are friendly and keep themselves to themselves.