I'm in the process of getting off catalog mailing lists in my "no new (or used) clothing for one year" challenge. So far, so good. Yes, I've been tempted to look in them, but I haven't seen anything I can't live without.
Since starting with You Need A Budget software, refraining from shopping has become easier. I used budget software 20 some years ago when we were struggling to get out of debt. I thought I had a good handle on spending, but seeing budget categories really puts the brakes on mindless spending. In fact, I realized just how much mindless spending has been going on. Not a lot, but small purchases really add up.
I'm especially watching my travel budget. For every dollar I don't spend unnecessarily, that dollar goes towards travel. I love watching that number go up.