I think I've always wondered this about myself but would be interested to hear from other people with the same issue and how you counteract it!
I think I might just be fundamentally lazy and it's getting me down. In the evenings and on my days off work, I really struggle to get anything done (house work, personal admin or even fun) unless it's prearranged. I work really well under pressure (have a high pressured job and do it really well, especially when I'm particularly busy) but I feel like I need a real deadline (not one I've invented myself) to get anything done.
I'm fine with taking my toddler to classes that start at a particular time, meeting friends as arranged, getting the house clean and tidy for visitors, etc. but if I don't have something specific to do/achieve, I'm likely to stay home and do very little. My husband is much the same.
I'd like to blame it on a stressful job, having a two year old, husband with health concerns, MIL who is terminally ill, being in the process of buying/selling a house (and temporarily moving into rented) but I think I was like this even before all this responsibility. I think the house stuff is just shining a light on how last minute I/we are at getting stuff done.
Can anyone relate/offer advice?