I was using Glue Stick most of the time from initially building the BigBox, but them started to get some good bed adhesion restults for PLA on just cleaned glass, but that was failing small prints, and cleaned bed was not working for ABS or PET. I got some 3DLAC, and this has been giving me great results for PLA, ABS and PETG, small and large prints. Having to wait for the bed to fully cool down to remove all the prints. Luckly I have a second glass plate, so I can swap them over while cooling. 3DLAC also a lot easier to clean of the bed compaired to Gue Stick.