Exercise routines?

theres a million things you can do... variations of the stuff you have already listed too..

can do "T" push ups, feet elevated push ups, reverse crunches, leg lifts, a kettle bell is on the cheaper side and you can do a ton of different things with them. jumping jacks, burpees (man i hate those) lunges, the list is really endless... tons of things that you can make harder using your own body weight too.. build lean muscle. muscle burns a ton on calories compared to fat.