(I'm studying Spanish)
1) I've set my computer's language to Spanish. Not only are all the Mac OS menus and dialogs in Spanish, but the web browser knows I've selected Spanish and many websites I go to show me Spanish-language versions. (Once in a while I need to reset to English when I really need to understand an error message).
2) Unless I'm doing something complicated or I'm nervous, I select Spanish on ATM machines and supermarket self-checkout machines.
3) I listen to the (excellent) podcasts, "The News In Slow Spanish." (I pay for the full half-hour program, it's worth it--it's exactly at the right level for me. Recently I've made a small breakthrough--I sometimes understand the programs without mentally translating).
4) I will randomly tune in for five or ten minutes at a time to Spanish-language programs on TV, and some on-demand material I get at no extra cost with Amazon Prime. I am not too proud to listen to children's programming; the Spanish version of "Fireman Sam" ("Sam, El Bombero") is about right.
5) I try to read the occasional news story in El Pais. I was in New York for a few days and I picked up a copy of the newspaper, El Diario.
6) When I want to find something out, I try to check the Spanish Wikipedia first, and only use the English Wikipedia afterwards.