Well...I always suggest people to take of the lashes daily. If you feel that the glue at the stores are old and don't last as long...I am not sure why that is. Duo clear and black does provide better hold but we currently only carry Duo Surgical Adhesive. We get ours straight from the distributors and we don't keep many in stock so our adhesives are always "new." I wish I could offer some additional advice, maybe you can try the ardell lashtite adhesive; it's a bit stiffer than duo but it has a good hold. Hope this helps :D If you could share your tips on cleaning the lashes and making them last longer I'm sure the community will appreciate it. Thanks again to everyone for putting in the time to ask questions!!