[User8712]

The gym has one main advantage, you invested time to get there. When I had a gym in my apartment building, I'd put on my gym clothes, go down there, and workout for an hour without a problem. Once I was there, I had no trouble staying.

Now, I have some gym equipment in my room. This doesn't work nearly as well. I'll start to workout, then check that forum post to see if anyone replied, then I'll browse YouTube for some music, then I might do a few sets, and finally I get distracted by something and quit.

For me, the gym, or biking outdoors works best. Once I'm on my bike, I'll mess around for hours. If I try to bike indoors, I'll last about 2 minutes.

[alleycat]

This has been my problem also. I've kinda solved it by dedicating one specific empty space in my place to working out (a room or what not), with the one mental rule that I'm not allowed to exit this area at all until I've finished my workout.