Giving gifts to one's wife

Q: I have been getting myself closer in following the Sunnahs of our beloved Nabi (Sallallahu Alayhi Wasallam) and trying to become a better Muslim and my wife stood by me and supported me she even ties my turban for me. I am 26 years old and the question that I have is as follows, what gifts did Nabi (Sallallahu Alayhi Wasallam) gift to his wives to increase or show love? I can get her anything but I would like to know what did our beloved Nabi (Sallallahu Alayhi Wasallam) give so I can emulate this behaviour as well?

Going to the Musjid after playing sports

Q: I came to know that wearing half sleeves shirt while performing Salaah is Maqrooh. I want ask that I go for squash daily from asr to maghrib so I wear half sleeves so I can play and it is very difficult to first pray in full sleeves than go back home and prepare for Squash. I also want to know that as squash makes you sweat, so can I pray in sweaty shirts as well as half sleeves?